import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

embedding/browser/nsIWebBrowserChrome3.idl

@@ -0,0 +1,61 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsIWebBrowserChrome2.idl"
+#include "nsIURI.idl"
+#include "nsIDOMNode.idl"
+
+interface nsIDocShell;
+interface nsIInputStream;
+
+/**
+ * nsIWebBrowserChrome3 is an extension to nsIWebBrowserChrome2.
+ */
+[scriptable, uuid(542b6625-35a9-426a-8257-c12a345383b0)]
+interface nsIWebBrowserChrome3 : nsIWebBrowserChrome2
+{
+  /**
+   * Determines the appropriate target for a link.
+   *
+   * @param originalTarget
+   *        The original link target.
+   * @param linkURI
+   *        Link destination URI.
+   * @param aDOMNode
+   *        Link DOM node.
+   * @param isAppTab
+   *        Whether or not the link is in an app tab.
+   * @returns A new link target, if appropriate.
+   *          Otherwise returns originalTarget.
+   */
+  AString onBeforeLinkTraversal(in AString originalTarget,
+                                in nsIURI linkURI,
+                                in nsIDOMNode linkNode,
+                                in boolean isAppTab);
+
+  /**
+   * Determines whether a load should continue.
+   *
+   * @param aDocShell
+   *        The docshell performing the load.
+   * @param aURI
+   *        The URI being loaded.
+   * @param aReferrer
+   *        The referrer of the load.
+   */
+  bool shouldLoadURI(in nsIDocShell    aDocShell,
+                     in nsIURI         aURI,
+                     in nsIURI         aReferrer);
+
+  /**
+   * Attempts to load the currently loaded page into a fresh process to increase
+   * available memory.
+   *
+   * @param aDocShell
+   *        The docshell performing the load.
+   */
+  bool reloadInFreshProcess(in nsIDocShell aDocShell,
+                            in nsIURI aURI,
+                            in nsIURI aReferrer);
+};