DevTools: remove extensions-related workaround from the docked devtools window destruction.

Review URL: http://codereview.chromium.org/155206

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@20139 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/debugger/devtools_window.cc

@@ -91,13 +91,8 @@ void DevToolsWindow::InspectedTabClosing() {
     // Update dev tools to reflect removed dev tools window.
     inspected_window_->UpdateDevTools();
     // In case of docked tab_contents we own it, so delete here.
+    delete tab_contents_;
 
-    // Instead of deleting tab contents, we add it into the
-    // stub browser and initiate regular closure;
-    Browser* b = Browser::Create(profile_);
-    b->tabstrip_model()->AddTabContents(tab_contents_, -1, false,
-        PageTransition::START_PAGE, true);
-    b->CloseAllTabs();
     delete this;
   } else {
     // First, initiate self-destruct to free all the registrars.

chrome/browser/extensions/extension_browser_event_router.cc

@@ -268,7 +268,19 @@ void ExtensionBrowserEventRouter::TabUpdated(TabContents* contents,
                                              bool did_navigate) {
   int tab_id = ExtensionTabUtil::GetTabId(contents);
   std::map<int, TabEntry>::iterator i = tab_entries_.find(tab_id);
-  CHECK(tab_entries_.end() != i);
+  if(tab_entries_.end() == i) {
+    // TODO(rafaelw): Unregister EBER on TAB_CONTENTS_DESTROYED in order
+    // not to receive NAV_ENTRY_COMMITTED from objects that are allocated
+    // at the same address as previously deleted TabContents.
+    //
+    // The problem here is that NAV_ENTRY_COMMITTED is issued by the navigation
+    // controller independently from tabstrip model. One should not rely upon
+    // TabStripModelObserver events when registering / unregistering
+    // tab contents events' handlers.
+    registrar_.Remove(this, NotificationType::NAV_ENTRY_COMMITTED,
+                      Source<NavigationController>(&contents->controller()));
+    return;
+  }
   TabEntry& entry = i->second;
 
   DictionaryValue* changed_properties = NULL;