[merge-m49] CrOS: Don't paint tab-loading spinners in layers while in immersive fullscreen.

chrome/browser/ui/views/tabs/tab.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 "chrome/browser/ui/views/tabs/tab.h"
 
 #include <stddef.h>
 #include <limits>
 #include <utility>
 
@@ skipping 1461 matching lines @@
       canvas->DrawImageInt(favicon, 0, 0, bounds.width(), bounds.height(),
                            bounds.x(), bounds.y(), bounds.width(),
                            bounds.height(), false);
     }
   }
 }
 
 void Tab::AdvanceLoadingAnimation() {
   const TabRendererData::NetworkState state = data().network_state;
   if (controller_->IsImmersiveStyle()) {
+    throbber_->SetVisible(false);
     if (state == TabRendererData::NETWORK_STATE_WAITING) {
       // Waiting steps backwards.
       immersive_loading_step_ =
           (immersive_loading_step_ - 1 + kImmersiveLoadingStepCount) %
           kImmersiveLoadingStepCount;
     } else if (state == TabRendererData::NETWORK_STATE_LOADING) {
       immersive_loading_step_ =
           (immersive_loading_step_ + 1) % kImmersiveLoadingStepCount;
     } else {
       immersive_loading_step_ = 0;
@@ skipping 267 matching lines @@
                          const gfx::ImageSkia& image) {
   DCHECK_NE(scale_factor, ui::SCALE_FACTOR_NONE);
   ImageCacheEntry entry;
   entry.resource_id = resource_id;
   entry.scale_factor = scale_factor;
   entry.image = image;
   image_cache_->push_front(entry);
   if (image_cache_->size() > kMaxImageCacheSize)
     image_cache_->pop_back();
 }