Do not report resource-timing subdocument loads triggered by that subdocument.

docshell/base/nsDocShell.cpp

@@ -1263,6 +1263,7 @@ nsDocShell::LoadURI(nsIURI* aURI,
   nsCOMPtr<nsIURI> referrer;
   nsCOMPtr<nsIURI> originalURI;
   bool loadReplace = false;
+  bool isFromProcessingFrameAttributes = false;
   nsCOMPtr<nsIInputStream> postStream;
   nsCOMPtr<nsIInputStream> headersStream;
   nsCOMPtr<nsIPrincipal> triggeringPrincipal;
@@ -1292,6 +1293,7 @@ nsDocShell::LoadURI(nsIURI* aURI,
     aLoadInfo->GetReferrer(getter_AddRefs(referrer));
     aLoadInfo->GetOriginalURI(getter_AddRefs(originalURI));
     aLoadInfo->GetLoadReplace(&loadReplace);
+    aLoadInfo->GetIsFromProcessingFrameAttributes(&isFromProcessingFrameAttributes);
     nsDocShellInfoLoadType lt = nsIDocShellLoadInfo::loadNormal;
     aLoadInfo->GetLoadType(&lt);
     // Get the appropriate loadType from nsIDocShellLoadInfo type
@@ -1571,6 +1573,7 @@ nsDocShell::LoadURI(nsIURI* aURI,
   return InternalLoad(aURI,
                       originalURI,
                       loadReplace,
+                      isFromProcessingFrameAttributes,
                       referrer,
                       referrerPolicy,
                       triggeringPrincipal,
@@ -5340,8 +5343,8 @@ nsDocShell::LoadErrorPage(nsIURI* aURI, const char16_t* aURL,
   rv = NS_NewURI(getter_AddRefs(errorPageURI), errorPageUrl);
   NS_ENSURE_SUCCESS(rv, rv);
 
-  return InternalLoad(errorPageURI, nullptr, false, nullptr,
+  return InternalLoad(errorPageURI, nullptr, false, false,
-                      mozilla::net::RP_Default,
+                      nullptr, mozilla::net::RP_Default,
                       nsContentUtils::GetSystemPrincipal(), nullptr,
                       INTERNAL_LOAD_FLAGS_NONE, EmptyString(),
                       nullptr, NullString(), nullptr, nullptr, LOAD_ERROR_PAGE,
@@ -5427,6 +5430,7 @@ nsDocShell::Reload(uint32_t aReloadFlags)
     rv = InternalLoad(currentURI,
                       originalURI,
                       loadReplace,
+                      false,           // Is from processing frame attributes
                       referrerURI,
                       referrerPolicy,
                       triggeringPrincipal,
@@ -9578,6 +9582,7 @@ class InternalLoadEvent : public Runnable
 public:
   InternalLoadEvent(nsDocShell* aDocShell, nsIURI* aURI,
                     nsIURI* aOriginalURI, bool aLoadReplace,
+                    bool aIsFromProcessingFrameAttributes,
                     nsIURI* aReferrer, uint32_t aReferrerPolicy,
                     nsIPrincipal* aTriggeringPrincipal,
                     nsIPrincipal* aPrincipalToInherit, uint32_t aFlags,
@@ -9591,6 +9596,7 @@ public:
     , mURI(aURI)
     , mOriginalURI(aOriginalURI)
     , mLoadReplace(aLoadReplace)
+    , mIsFromProcessingFrameAttributes(aIsFromProcessingFrameAttributes)
     , mReferrer(aReferrer)
     , mReferrerPolicy(aReferrerPolicy)
     , mTriggeringPrincipal(aTriggeringPrincipal)
@@ -9615,6 +9621,7 @@ public:
   {
     return mDocShell->InternalLoad(mURI, mOriginalURI,
                                    mLoadReplace,
+                                   mIsFromProcessingFrameAttributes,
                                    mReferrer,
                                    mReferrerPolicy,
                                    mTriggeringPrincipal, mPrincipalToInherit,
@@ -9635,6 +9642,7 @@ private:
   nsCOMPtr<nsIURI> mURI;
   nsCOMPtr<nsIURI> mOriginalURI;
   bool mLoadReplace;
+  bool mIsFromProcessingFrameAttributes;
   nsCOMPtr<nsIURI> mReferrer;
   uint32_t mReferrerPolicy;
   nsCOMPtr<nsIPrincipal> mTriggeringPrincipal;
@@ -9703,6 +9711,7 @@ NS_IMETHODIMP
 nsDocShell::InternalLoad(nsIURI* aURI,
                          nsIURI* aOriginalURI,
                          bool aLoadReplace,
+                         bool aIsFromProcessingFrameAttributes,
                          nsIURI* aReferrer,
                          uint32_t aReferrerPolicy,
                          nsIPrincipal* aTriggeringPrincipal,
@@ -10005,6 +10014,7 @@ nsDocShell::InternalLoad(nsIURI* aURI,
                                     INTERNAL_LOAD_FLAGS_DONT_SEND_REFERRER));
         loadInfo->SetOriginalURI(aOriginalURI);
         loadInfo->SetLoadReplace(aLoadReplace);
+        loadInfo->SetIsFromProcessingFrameAttributes(aIsFromProcessingFrameAttributes);
         loadInfo->SetTriggeringPrincipal(aTriggeringPrincipal);
         loadInfo->SetInheritPrincipal(
           aFlags & INTERNAL_LOAD_FLAGS_INHERIT_PRINCIPAL);
@@ -10053,6 +10063,7 @@ nsDocShell::InternalLoad(nsIURI* aURI,
       rv = targetDocShell->InternalLoad(aURI,
                                         aOriginalURI,
                                         aLoadReplace,
+                                        aIsFromProcessingFrameAttributes,
                                         aReferrer,
                                         aReferrerPolicy,
                                         aTriggeringPrincipal,
@@ -10135,6 +10146,7 @@ nsDocShell::InternalLoad(nsIURI* aURI,
       // Do this asynchronously
       nsCOMPtr<nsIRunnable> ev =
         new InternalLoadEvent(this, aURI, aOriginalURI, aLoadReplace,
+                              aIsFromProcessingFrameAttributes,
                               aReferrer, aReferrerPolicy,
                               aTriggeringPrincipal, principalToInherit,
                               aFlags, aTypeHint, aPostData, aHeadersData,
@@ -10661,7 +10673,8 @@ nsDocShell::InternalLoad(nsIURI* aURI,
                         nsINetworkPredictor::PREDICT_LOAD, this, nullptr);
 
   nsCOMPtr<nsIRequest> req;
-  rv = DoURILoad(aURI, aOriginalURI, aLoadReplace, loadFromExternal,
+  rv = DoURILoad(aURI, aOriginalURI, aLoadReplace, 
+                 aIsFromProcessingFrameAttributes, loadFromExternal,
                  (aFlags & INTERNAL_LOAD_FLAGS_FORCE_ALLOW_DATA_URI),
                  aReferrer,
                  !(aFlags & INTERNAL_LOAD_FLAGS_DONT_SEND_REFERRER),
@@ -10743,6 +10756,7 @@ nsresult
 nsDocShell::DoURILoad(nsIURI* aURI,
                       nsIURI* aOriginalURI,
                       bool aLoadReplace,
+                      bool aIsFromProcessingFrameAttributes,
                       bool aLoadFromExternal,
                       bool aForceAllowDataURI,
                       nsIURI* aReferrerURI,
@@ -10903,7 +10917,7 @@ nsDocShell::DoURILoad(nsIURI* aURI,
     securityFlags |= nsILoadInfo::SEC_SANDBOXED;
   }
 
-  nsCOMPtr<nsILoadInfo> loadInfo =
+  RefPtr<LoadInfo> loadInfo =
     (aContentPolicyType == nsIContentPolicy::TYPE_DOCUMENT) ?
       new LoadInfo(loadingWindow, aTriggeringPrincipal, topLevelLoadingContext,
                    securityFlags) :
@@ -10929,6 +10943,10 @@ nsDocShell::DoURILoad(nsIURI* aURI,
     return rv;
   }
 
+  if (aIsFromProcessingFrameAttributes) {
+    loadInfo->SetIsFromProcessingFrameAttributes();
+  }
+
   if (!isSrcdoc) {
     rv = NS_NewChannelInternal(getter_AddRefs(channel),
                                aURI,
@@ -12581,6 +12599,7 @@ nsDocShell::LoadHistoryEntry(nsISHEntry* aEntry, uint32_t aLoadType)
   rv = InternalLoad(uri,
                     originalURI,
                     loadReplace,
+                    false,              // Is from processing frame attributes
                     referrerURI,
                     referrerPolicy,
                     triggeringPrincipal,
@@ -14084,6 +14103,7 @@ nsDocShell::OnLinkClickSync(nsIContent* aContent,
   nsresult rv = InternalLoad(clonedURI,                 // New URI
                              nullptr,                   // Original URI
                              false,                     // LoadReplace
+                             false,                     // From frame attributes
                              referer,                   // Referer URI
                              refererPolicy,             // Referer policy
                              triggeringPrincipal,

docshell/base/nsDocShell.h

@@ -371,6 +371,7 @@ protected:
   nsresult DoURILoad(nsIURI* aURI,
                      nsIURI* aOriginalURI,
                      bool aLoadReplace,
+                     bool aIsFromProcessingFrameAttributes,
                      bool aLoadFromExternal,
                      bool aForceAllowDataURI,
                      nsIURI* aReferrer,

docshell/base/nsDocShellLoadInfo.cpp

@@ -20,6 +20,7 @@ nsDocShellLoadInfo::nsDocShellLoadInfo()
   , mReferrerPolicy(mozilla::net::RP_Default)
   , mLoadType(nsIDocShellLoadInfo::loadNormal)
   , mIsSrcdocLoad(false)
+  , mIsFromProcessingFrameAttributes(false)
 {
 }
 
@@ -310,3 +311,19 @@ nsDocShellLoadInfo::SetBaseURI(nsIURI* aBaseURI)
   mBaseURI = aBaseURI;
   return NS_OK;
 }
+
+NS_IMETHODIMP
+nsDocShellLoadInfo::GetIsFromProcessingFrameAttributes(bool* aIsFromProcessingFrameAttributes)
+{
+  NS_ENSURE_ARG_POINTER(aIsFromProcessingFrameAttributes);
+
+  *aIsFromProcessingFrameAttributes = mIsFromProcessingFrameAttributes;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsDocShellLoadInfo::SetIsFromProcessingFrameAttributes(bool aIsFromProcessingFrameAttributes)
+{
+  mIsFromProcessingFrameAttributes = aIsFromProcessingFrameAttributes;
+  return NS_OK;
+}

docshell/base/nsDocShellLoadInfo.h

@@ -49,6 +49,10 @@ protected:
   nsString mSrcdocData;
   nsCOMPtr<nsIDocShell> mSourceDocShell;
   nsCOMPtr<nsIURI> mBaseURI;
+
+  // This will be true if this load is triggered by attribute changes.
+  // See nsILoadInfo.isFromProcessingFrameAttributes
+  bool mIsFromProcessingFrameAttributes;
 };
 
 #endif /* nsDocShellLoadInfo_h__ */

docshell/base/nsIDocShell.idl

@@ -133,6 +133,10 @@ interface nsIDocShell : nsIDocShellTreeItem
    * @param aLoadReplace         - If set LOAD_REPLACE flag will be set on the
    *                               channel. aOriginalURI is null, this argument is
    *                               ignored.
+   * @param aIsFromProcessingFrameAttributes
+   *                             - If this is a load triggered by changing frame
+   *                               attributes.
+   *                               See nsILoadInfo.isFromProcessingFrameAttributes
    * @param aReferrer            - Referring URI
    * @param aReferrerPolicy      - Referrer policy
    * @param aTriggeringPrincipal - A non-null principal that initiated that load.
@@ -178,6 +182,7 @@ interface nsIDocShell : nsIDocShellTreeItem
   [noscript]void internalLoad(in nsIURI aURI,
                               in nsIURI aOriginalURI,
                               in boolean aLoadReplace,
+                              in boolean aIsFromProcessingFrameAttributes,
                               in nsIURI aReferrer,
                               in unsigned long aReferrerPolicy,
                               in nsIPrincipal aTriggeringPrincipal,

docshell/base/nsIDocShellLoadInfo.idl

@@ -128,4 +128,10 @@ interface nsIDocShellLoadInfo : nsISupports
      * URI as this information isn't embedded in the load's URI.
      */
     attribute nsIURI baseURI;
+
+    /**
+     * This will be true if this load is triggered by attribute changes.
+     * See nsILoadInfo.isFromProcessingFrameAttributes
+     */
+    attribute boolean isFromProcessingFrameAttributes;
 };

dom/base/nsFrameLoader.cpp

@@ -588,6 +588,9 @@ nsFrameLoader::ReallyStartLoadingInternal()
     flags = nsIWebNavigation::LOAD_FLAGS_ALLOW_THIRD_PARTY_FIXUP |
             nsIWebNavigation::LOAD_FLAGS_DISALLOW_INHERIT_PRINCIPAL;
   }
+  
+  // Notify that this load resulted from attribute changes.
+  loadInfo->SetIsFromProcessingFrameAttributes(true);
 
   // Kick off the load...
   bool tmpState = mNeedsAsyncDestroy;

ipc/glue/BackgroundUtils.cpp

@@ -295,7 +295,8 @@ LoadInfoToLoadInfoArgs(nsILoadInfo *aLoadInfo,
       aLoadInfo->CorsUnsafeHeaders(),
       aLoadInfo->GetForcePreflight(),
       aLoadInfo->GetIsPreflight(),
-      aLoadInfo->GetLoadTriggeredFromExternal()
+      aLoadInfo->GetLoadTriggeredFromExternal(),
+      aLoadInfo->GetIsFromProcessingFrameAttributes()
       );
 
   return NS_OK;
@@ -347,7 +348,7 @@ LoadInfoArgsToLoadInfo(const OptionalLoadInfoArgs& aOptionalLoadInfoArgs,
     redirectChain.AppendElement(redirectedPrincipal.forget());
   }
 
-  nsCOMPtr<nsILoadInfo> loadInfo =
+  RefPtr<mozilla::LoadInfo> loadInfo =
     new mozilla::LoadInfo(loadingPrincipal,
                           triggeringPrincipal,
                           principalToInherit,
@@ -375,8 +376,12 @@ LoadInfoArgsToLoadInfo(const OptionalLoadInfoArgs& aOptionalLoadInfoArgs,
                           loadInfoArgs.loadTriggeredFromExternal()
                           );
 
-   loadInfo.forget(outLoadInfo);
+  if (loadInfoArgs.isFromProcessingFrameAttributes()) {
-   return NS_OK;
+    loadInfo->SetIsFromProcessingFrameAttributes();
+  }
+
+  loadInfo.forget(outLoadInfo);
+  return NS_OK;
 }
 
 } // namespace ipc

netwerk/base/LoadInfo.cpp

@@ -67,6 +67,7 @@ LoadInfo::LoadInfo(nsIPrincipal* aLoadingPrincipal,
   , mForcePreflight(false)
   , mIsPreflight(false)
   , mLoadTriggeredFromExternal(false)
+  , mIsFromProcessingFrameAttributes(false)
 {
   MOZ_ASSERT(mLoadingPrincipal);
   MOZ_ASSERT(mTriggeringPrincipal);
@@ -241,6 +242,7 @@ LoadInfo::LoadInfo(nsPIDOMWindowOuter* aOuterWindow,
   , mForcePreflight(false)
   , mIsPreflight(false)
   , mLoadTriggeredFromExternal(false)
+  , mIsFromProcessingFrameAttributes(false)
 {
   // Top-level loads are never third-party
   // Grab the information we can out of the window.
@@ -304,6 +306,7 @@ LoadInfo::LoadInfo(const LoadInfo& rhs)
   , mForcePreflight(rhs.mForcePreflight)
   , mIsPreflight(rhs.mIsPreflight)
   , mLoadTriggeredFromExternal(rhs.mLoadTriggeredFromExternal)
+  , mIsFromProcessingFrameAttributes(rhs.mIsFromProcessingFrameAttributes)
 {
 }
 
@@ -355,6 +358,7 @@ LoadInfo::LoadInfo(nsIPrincipal* aLoadingPrincipal,
   , mForcePreflight(aForcePreflight)
   , mIsPreflight(aIsPreflight)
   , mLoadTriggeredFromExternal(aLoadTriggeredFromExternal)
+  , mIsFromProcessingFrameAttributes(false)
 {
   // Only top level TYPE_DOCUMENT loads can have a null loadingPrincipal
   MOZ_ASSERT(mLoadingPrincipal || aContentPolicyType == nsIContentPolicy::TYPE_DOCUMENT);
@@ -970,5 +974,19 @@ LoadInfo::GetIsTopLevelLoad(bool *aResult)
   return NS_OK;
 }
 
+void
+LoadInfo::SetIsFromProcessingFrameAttributes()
+{
+  mIsFromProcessingFrameAttributes = true;
+}
+
+NS_IMETHODIMP
+LoadInfo::GetIsFromProcessingFrameAttributes(bool *aIsFromProcessingFrameAttributes)
+{
+  MOZ_ASSERT(aIsFromProcessingFrameAttributes);
+  *aIsFromProcessingFrameAttributes = mIsFromProcessingFrameAttributes;
+  return NS_OK;
+}
+
 } // namespace net
 } // namespace mozilla

netwerk/base/LoadInfo.h

@@ -81,6 +81,7 @@ public:
 
   void SetIsPreflight();
   void SetUpgradeInsecureRequests();
+  void SetIsFromProcessingFrameAttributes();
 
 private:
   // private constructor that is only allowed to be called from within
@@ -157,6 +158,11 @@ private:
   bool                             mForcePreflight;
   bool                             mIsPreflight;
   bool                             mLoadTriggeredFromExternal;
+
+  // Is true if this load was triggered by processing the attributes of the
+  // browsing context container.
+  // See nsILoadInfo.isFromProcessingFrameAttributes
+  bool                             mIsFromProcessingFrameAttributes;
 };
 
 } // namespace net

netwerk/base/nsILoadInfo.idl

@@ -740,4 +740,11 @@ interface nsILoadInfo : nsISupports
    * Note that the load for a sub-frame's document will return false here.
    */
   [infallible] readonly attribute boolean isTopLevelLoad;
+
+  /**
+   * This attribute will be true if this is a load triggered by
+   * https://html.spec.whatwg.org/multipage/iframe-embed-object.html#process-the-iframe-attributes
+   * or https://html.spec.whatwg.org/multipage/obsolete.html#process-the-frame-attributes
+   */
+  [infallible] readonly attribute boolean isFromProcessingFrameAttributes;
 };

netwerk/ipc/NeckoChannelParams.ipdlh

@@ -56,6 +56,7 @@ struct LoadInfoArgs
   bool                  forcePreflight;
   bool                  isPreflight;
   bool                  loadTriggeredFromExternal;
+  bool                  isFromProcessingFrameAttributes;
 };
 
 /**

netwerk/protocol/http/HttpBaseChannel.cpp

@@ -3676,14 +3676,17 @@ HttpBaseChannel::GetPerformance()
     return nullptr;
   }
 
-  // We only add to the document's performance object if it has the same
-  // principal as the one triggering the load. This is to prevent navigations
-  // triggered _by_ the iframe from showing up in the parent document's
-  // performance entries if they have different origins.
   if (!mLoadInfo->TriggeringPrincipal()->Equals(loadingDocument->NodePrincipal())) {
     return nullptr;
   }
 
+  if (mLoadInfo->GetExternalContentPolicyType() == nsIContentPolicy::TYPE_SUBDOCUMENT &&
+      !mLoadInfo->GetIsFromProcessingFrameAttributes()) {
+    // We only report loads caused by processing the attributes of the
+    // browsing context container.
+    return nullptr;
+  }
+
   nsCOMPtr<nsPIDOMWindowInner> innerWindow = loadingDocument->GetInnerWindow();
   if (!innerWindow) {
     return nullptr;