Exit HTML Fullscreen when browser fullscreen is active.

content/browser/web_contents/web_contents_impl.cc

 // Copyright (c) 2012 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 "content/browser/web_contents/web_contents_impl.h"
 
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/lazy_instance.h"
@@ skipping 1461 matching lines @@
 
 #if defined(OS_ANDROID)
   ContentVideoView* video_view = ContentVideoView::GetInstance();
   if (video_view != NULL)
     video_view->OnExitFullscreen();
 #endif
 
   if (delegate_)
     delegate_->ExitFullscreenModeForTab(this);
 
+  // Ensure web contents exit fullscreen state by sending a resize message,
+  // which includes the fullscreen state. This is required for the situation
+  // of the browser moving the view into a fullscreen state "browser fullscreen"
+  // and then the contents entering "tab fullscreen". Exiting the contents
+  // "tab fullscreen" then won't have the side effect of the view resizing,
+  // hence the explicit call here is required.
+  if (RenderWidgetHostView* rwh_view = GetRenderWidgetHostView()) {
+    if (RenderWidgetHost* render_widget_host = rwh_view->GetRenderWidgetHost())
+      render_widget_host->WasResized();
+  }
+
   FOR_EACH_OBSERVER(WebContentsObserver,
                     observers_,
                     DidToggleFullscreenModeForTab(IsFullscreenForCurrentTab()));
 }
 
 bool WebContentsImpl::IsFullscreenForCurrentTab() const {
   return delegate_ ? delegate_->IsFullscreenForTabOrPending(this) : false;
 }
 
 void WebContentsImpl::RequestToLockMouse(bool user_gesture,
@@ skipping 3019 matching lines @@
   node->render_manager()->ResumeResponseDeferredAtStart();
 }
 
 void WebContentsImpl::SetForceDisableOverscrollContent(bool force_disable) {
   force_disable_overscroll_content_ = force_disable;
   if (view_)
     view_->SetOverscrollControllerEnabled(CanOverscrollContent());
 }
 
 }  // namespace content