cc: Move UI Resource management out of LayerTreeHost.

ui/android/resources/resource_manager_impl.h

Index: ui/android/resources/resource_manager_impl.h
diff --git a/ui/android/resources/resource_manager_impl.h b/ui/android/resources/resource_manager_impl.h
index 4e089898f3a67ec0bc73017ed03e7d4833d5c5fb..339ded7875c4cbd031b831cf9c5fd0d2d077fab3 100644
--- a/ui/android/resources/resource_manager_impl.h
+++ b/ui/android/resources/resource_manager_impl.h
@@ -12,6 +12,10 @@
 #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 {
@@ -21,7 +25,7 @@ class UI_ANDROID_EXPORT ResourceManagerImpl : public ResourceManager {
   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;
@@ -83,7 +87,7 @@ class UI_ANDROID_EXPORT ResourceManagerImpl : public ResourceManager {
   typedef IDMap<CrushedSpriteResource, IDMapOwnPointer>
       CrushedSpriteResourceMap;
 
-  cc::LayerTreeHost* host_;
+  cc::UIResourceManager* ui_resource_manager_;
   ResourceMap resources_[ANDROID_RESOURCE_TYPE_COUNT];
   CrushedSpriteResourceMap crushed_sprite_resources_;