Android: Don't destroy LayerTreeHost when Surface goes away

ui/android/resources/ui_resource_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 "ui/android/resources/ui_resource_android.h"
-
-#include "base/logging.h"
-#include "ui/android/resources/ui_resource_provider.h"
-
-namespace ui {
-
-scoped_ptr<UIResourceAndroid> UIResourceAndroid::CreateFromJavaBitmap(
-    ui::UIResourceProvider* provider,
-    const gfx::JavaBitmap& java_bitmap) {
-  SkBitmap skbitmap = gfx::CreateSkBitmapFromJavaBitmap(java_bitmap);
-  skbitmap.setImmutable();
-
-  return make_scoped_ptr(new UIResourceAndroid(provider, skbitmap));
-}
-
-UIResourceAndroid::~UIResourceAndroid() {
-  if (id_ && provider_)
-    provider_->DeleteUIResource(id_);
-}
-
-cc::UIResourceBitmap UIResourceAndroid::GetBitmap(cc::UIResourceId uid,
-                                                  bool resource_lost) {
-  DCHECK(!bitmap_.empty());
-  return cc::UIResourceBitmap(bitmap_);
-}
-
-cc::UIResourceId UIResourceAndroid::id() {
-  if (id_)
-    return id_;
-  if (!provider_ || bitmap_.empty())
-    return 0;
-  id_ = provider_->CreateUIResource(this);
-  return id_;
-}
-
-void UIResourceAndroid::UIResourceIsInvalid() {
-  id_ = 0;
-}
-
-UIResourceAndroid::UIResourceAndroid(ui::UIResourceProvider* provider,
-                                     const SkBitmap& skbitmap)
-    : provider_(provider), bitmap_(skbitmap), id_(0) {
-}
-
-}  // namespace ui