cc: Move UI Resource management out of LayerTreeHost.

ui/android/resources/resource_manager_impl.h

 // 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.
 
 #ifndef UI_ANDROID_RESOURCES_RESOURCE_MANAGER_IMPL_H_
 #define UI_ANDROID_RESOURCES_RESOURCE_MANAGER_IMPL_H_
 
 #include <memory>
 
 #include "base/id_map.h"
 #include "base/macros.h"
 #include "ui/android/resources/resource_manager.h"
 #include "ui/android/ui_android_export.h"
 #include "ui/gfx/geometry/rect.h"
 #include "ui/gfx/native_widget_types.h"
 
+namespace cc {
+class UIResourceManager;
+}  // namespace cc
+
 namespace ui {
 
 class UI_ANDROID_EXPORT ResourceManagerImpl : public ResourceManager {
  public:
   static ResourceManagerImpl* FromJavaObject(jobject jobj);
 
   explicit ResourceManagerImpl(gfx::NativeWindow native_window);
   ~ResourceManagerImpl() override;
 
-  void Init(cc::LayerTreeHost* host);
+  void Init(cc::UIResourceManager* ui_resource_manager);
 
   // ResourceManager implementation.
   base::android::ScopedJavaLocalRef<jobject> GetJavaObject() override;
   Resource* GetResource(AndroidResourceType res_type, int res_id) override;
   Resource* GetStaticResourceWithTint(
       int res_id, int tint_color) override;
   void RemoveUnusedTints(const std::unordered_set<int>& used_tints) override;
   void PreloadResource(AndroidResourceType res_type, int res_id) override;
   CrushedSpriteResource* GetCrushedSpriteResource(
       int bitmap_res_id, int metadata_res_id) override;
@@ skipping 48 matching lines @@
   virtual void RequestCrushedSpriteResourceFromJava(int bitmap_res_id,
                                                     int metadata_res_id,
                                                     bool reloading);
 
   typedef IDMap<Resource, IDMapOwnPointer> ResourceMap;
   typedef IDMap<CrushedSpriteResource, IDMapOwnPointer>
       CrushedSpriteResourceMap;
   typedef std::unordered_map<int, std::unique_ptr<ResourceMap> >
       TintedResourceMap;
 
-  cc::LayerTreeHost* host_;
+  cc::UIResourceManager* ui_resource_manager_;
   ResourceMap resources_[ANDROID_RESOURCE_TYPE_COUNT];
   CrushedSpriteResourceMap crushed_sprite_resources_;
   TintedResourceMap tinted_resources_;
 
   base::android::ScopedJavaGlobalRef<jobject> java_obj_;
 
   DISALLOW_COPY_AND_ASSIGN(ResourceManagerImpl);
 };
 
 }  // namespace ui
 
 #endif  // UI_ANDROID_RESOURCES_RESOURCE_MANAGER_IMPL_H_