Revert "[PALEMOON] Findbar - remove unnecessary code (Findbar is no longer in the gBrowser)"

This reverts commit 38f30cdf759e4f6da96da777c3216b5047d672c1.

toolkit/content/browser-content.js

@@ -841,6 +841,35 @@ var FindBar = {
         fakeEvent[k] = event[k];
       }
     }
+#ifdef MC_PALEMOON
+    let findBarId = "FindToolbar";
+    // The FindBar is in the chrome window's context, not in tabbrowser
+    // - see also bug 537013
+    let chromeWin = null;
+    try {
+       chromeWin = content
+         .QueryInterface(Ci.nsIInterfaceRequestor)
+         .getInterface(Ci.nsIWebNavigation)
+         .QueryInterface(Ci.nsIDocShellTreeItem)
+         .rootTreeItem
+         .QueryInterface(Ci.nsIInterfaceRequestor)
+         .getInterface(Ci.nsIDOMWindow)
+         .QueryInterface(Ci.nsIDOMChromeWindow);
+    } catch (e) {
+      Cu.reportError(
+          "The FindBar - the chrome window's context was not detected:\n" + e);
+    }
+    if (chromeWin && chromeWin.document.getElementById(findBarId)) {
+      try {
+        chromeWin.document.getElementById(findBarId)
+            .browser = Services.wm.getMostRecentWindow("navigator:browser")
+                .gBrowser.mCurrentBrowser;
+      } catch (e) {
+        Cu.reportError(
+            "The FindBar - cannot set the property 'browser':\n" + e);
+      }
+    }
+#endif
 
     // sendSyncMessage returns an array of the responses from all listeners
     let rv = sendSyncMessage("Findbar:Keypress", {

toolkit/content/jar.mn

@@ -39,7 +39,7 @@ toolkit.jar:
    content/global/plugins.html
    content/global/plugins.css
    content/global/browser-child.js
-   content/global/browser-content.js
+*  content/global/browser-content.js
 *  content/global/buildconfig.html
    content/global/contentAreaUtils.js
 #ifndef MOZ_FENNEC