Show OOM notification bar in all tabs sharing same render process

chrome/browser/tab_contents/tab_contents.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/tab_contents/tab_contents.h"
 
 #include <cmath>
 
 #include "base/auto_reset.h"
 #include "base/metrics/histogram.h"
@@ skipping 305 matching lines @@
       is_showing_before_unload_dialog_(false),
       renderer_preferences_(),
       opener_web_ui_type_(WebUIFactory::kNoWebUI),
       language_state_(&controller_),
       closed_by_user_gesture_(false),
       minimum_zoom_percent_(
           static_cast<int>(WebKit::WebView::minTextSizeMultiplier * 100)),
       maximum_zoom_percent_(
           static_cast<int>(WebKit::WebView::maxTextSizeMultiplier * 100)),
       temporary_zoom_settings_(false),
-      content_restrictions_(0) {
+      content_restrictions_(0),
+      render_process_ran_out_of_memory_(false) {
   renderer_preferences_util::UpdateFromSystemSettings(
       &renderer_preferences_, profile);
 
   content_settings_delegate_.reset(
       new TabSpecificContentSettings(this, profile));
 
   render_manager_.Init(profile, site_instance, routing_id);
 
   // We have the initial size of the view be based on the size of the passed in
   // tab contents (normally a tab from the same window).
@@ skipping 2085 matching lines @@
   }
 
   SetIsLoading(false, NULL);
   NotifyDisconnected();
   SetIsCrashed(status, error_code);
 
   // Remove all infobars.
   for (int i = infobar_delegate_count() - 1; i >=0 ; --i)
     RemoveInfoBar(GetInfoBarDelegateAt(i));
 
+  // Restore OOM infobar.
+  if (render_process_ran_out_of_memory_)
+    OnJSOutOfMemory();
+
   // Tell the view that we've crashed so it can prepare the sad tab page.
   // Only do this if we're not in browser shutdown, so that TabContents
   // objects that are not in a browser (e.g., HTML dialogs) and thus are
   // visible do not flash a sad tab page.
   if (browser_shutdown::GetShutdownType() == browser_shutdown::NOT_VALID)
     view_->OnTabCrashed(status, error_code);
 
   // Hide any visible hung renderer warning for this web contents' process.
   hung_renderer_dialog::HideForTabContents(this);
 }
@@ skipping 488 matching lines @@
 }
 
 void TabContents::OnIgnoredUIEvent() {
   if (constrained_window_count()) {
     ConstrainedWindow* window = *constrained_window_begin();
     window->FocusConstrainedWindow();
   }
 }
 
 void TabContents::OnJSOutOfMemory() {
+  render_process_ran_out_of_memory_ = true;
   AddInfoBar(new SimpleAlertInfoBarDelegate(this, NULL,
       l10n_util::GetStringUTF16(IDS_JS_OUT_OF_MEMORY_PROMPT), true));
 }
 
 void TabContents::OnCrossSiteResponse(int new_render_process_host_id,
                                       int new_request_id) {
   // Allows the TabContents to react when a cross-site response is ready to be
   // delivered to a pending RenderViewHost.  We must first run the onunload
   // handler of the old RenderViewHost before we can allow it to proceed.
   render_manager_.OnCrossSiteResponse(new_render_process_host_id,
@@ skipping 170 matching lines @@
     case NotificationType::RENDER_WIDGET_HOST_DESTROYED:
       view_->RenderWidgetHostDestroyed(Source<RenderWidgetHost>(source).ptr());
       break;
 
     case NotificationType::NAV_ENTRY_COMMITTED: {
       DCHECK(&controller_ == Source<NavigationController>(source).ptr());
 
       NavigationController::LoadCommittedDetails& committed_details =
           *(Details<NavigationController::LoadCommittedDetails>(details).ptr());
       ExpireInfoBars(committed_details);
+
+      render_process_ran_out_of_memory_ = false;
       break;
     }
 
 #if defined(OS_LINUX)
     case NotificationType::BROWSER_THEME_CHANGED: {
       renderer_preferences_util::UpdateFromSystemSettings(
           &renderer_preferences_, profile());
       render_view_host()->SyncRendererPrefs();
       break;
     }
@@ skipping 118 matching lines @@
 }
 
 bool TabContents::MaybeUsePreloadedPage(const GURL& url) {
   PrerenderManager* pm = profile()->GetPrerenderManager();
   if (pm != NULL) {
     if (pm->MaybeUsePreloadedPage(this, url))
       return true;
   }
   return false;
 }