Send a resize message to renderer when exiting full screen in vr.

chrome/browser/android/vr_shell/vr_shell.cc

 // Copyright 2016 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/android/vr_shell/vr_shell.h"
 
 #include <android/native_window_jni.h>
 
 #include "base/metrics/histogram_macros.h"
 #include "base/threading/platform_thread.h"
@@ skipping 357 matching lines @@
   PostToGlThreadWhenReady(base::Bind(&VrShellGl::UpdateScene,
                                      thread->GetVrShellGl(),
                                      base::Passed(args->CreateDeepCopy())));
 }
 
 void VrShell::DoUiAction(const UiAction action) {
   content::NavigationController& controller = main_contents_->GetController();
   switch (action) {
     case HISTORY_BACK:
       if (main_contents_->IsFullscreen()) {
-        main_contents_->ExitFullscreen(true /* will_cause_resize */);
+        main_contents_->ExitFullscreen(false);
       } else if (controller.CanGoBack()) {
         controller.GoBack();
       }
       break;
     case HISTORY_FORWARD:
       if (controller.CanGoForward())
         controller.GoForward();
       break;
     case RELOAD:
       controller.Reload(content::ReloadType::NORMAL, false);
@@ skipping 87 matching lines @@
   return reinterpret_cast<intptr_t>(new VrShell(
       env, obj, content::WebContents::FromJavaWebContents(content_web_contents),
       reinterpret_cast<ui::WindowAndroid*>(content_window_android),
       content::WebContents::FromJavaWebContents(ui_web_contents),
       reinterpret_cast<ui::WindowAndroid*>(ui_window_android),
       for_web_vr, VrShellDelegate::GetNativeDelegate(env, delegate),
       reinterpret_cast<gvr_context*>(gvr_api), reprojected_rendering));
 }
 
 }  // namespace vr_shell