[Android] Disable the refresh effect for fullscreen HTML5 scenarios

content/browser/android/overscroll_controller_android.cc

 // Copyright 2014 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/android/overscroll_controller_android.h"
 
 #include "base/android/build_info.h"
 #include "base/command_line.h"
 #include "cc/layers/layer.h"
 #include "cc/output/compositor_frame_metadata.h"
@@ skipping 79 matching lines @@
 
 OverscrollControllerAndroid::OverscrollControllerAndroid(
     ContentViewCoreImpl* content_view_core)
     : compositor_(content_view_core->GetWindowAndroid()->GetCompositor()),
       dpi_scale_(content_view_core->GetDpiScale()),
       enabled_(true),
       glow_effect_(CreateGlowEffect(this, dpi_scale_)),
       refresh_effect_(CreateRefreshEffect(content_view_core)),
       is_fullscreen_(false) {
   DCHECK(compositor_);
+  // Fullscreen state is only relevant for the refresh effect.
+  if (refresh_effect_) {
+    WebContentsImpl* web_contents =
+        static_cast<WebContentsImpl*>(content_view_core->GetWebContents());
+    is_fullscreen_ = web_contents->IsFullscreenForCurrentTab();
+    Observe(web_contents);
+  }
 }
 
 OverscrollControllerAndroid::~OverscrollControllerAndroid() {
 }
 
 bool OverscrollControllerAndroid::WillHandleGestureEvent(
     const blink::WebGestureEvent& event) {
   if (!enabled_)
     return false;
 
@@ skipping 151 matching lines @@
   if (!enabled_) {
     if (refresh_effect_)
       refresh_effect_->Reset();
     if (glow_effect_)
       glow_effect_->Reset();
   }
 }
 
 void OverscrollControllerAndroid::DidToggleFullscreenModeForTab(
     bool entered_fullscreen) {
+  DCHECK(refresh_effect_);
   if (is_fullscreen_ == entered_fullscreen)
     return;
   is_fullscreen_ = entered_fullscreen;
   if (is_fullscreen_)
     refresh_effect_->ReleaseWithoutActivation();
 }
 
 scoped_ptr<EdgeEffectBase> OverscrollControllerAndroid::CreateEdgeEffect() {
   return CreateGlowEdgeEffect(&compositor_->GetResourceManager(), dpi_scale_);
 }
 
 void OverscrollControllerAndroid::SetNeedsAnimate() {
   compositor_->SetNeedsAnimate();
 }
 
 }  // namespace content