[tracing] Add memory usage of Android UI resources to memory-infra

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/macros.h"
+#include "base/trace_event/memory_dump_provider.h"
 #include "third_party/skia/include/core/SkColor.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 {
+class UI_ANDROID_EXPORT ResourceManagerImpl
+    : public ResourceManager,
+      public base::trace_event::MemoryDumpProvider {
  public:
   static ResourceManagerImpl* FromJavaObject(jobject jobj);
 
   explicit ResourceManagerImpl(gfx::NativeWindow native_window);
   ~ResourceManagerImpl() override;
 
   void Init(cc::UIResourceManager* ui_resource_manager);
 
   // ResourceManager implementation.
   base::android::ScopedJavaLocalRef<jobject> GetJavaObject() override;
@@ skipping 37 matching lines @@
       const base::android::JavaRef<jobject>& bitmap);
   void ClearTintedResourceCache(JNIEnv* env,
       const base::android::JavaRef<jobject>& jobj);
 
   static bool RegisterResourceManager(JNIEnv* env);
 
   // Helper method for processing crushed sprite metadata; public for testing.
   CrushedSpriteResource::SrcDstRects ProcessCrushedSpriteFrameRects(
       std::vector<std::vector<int>> frame_rects_vector);
 
+  // base::trace_event::MemoryDumpProvider implementation.
+  bool OnMemoryDump(const base::trace_event::MemoryDumpArgs& args,
+                    base::trace_event::ProcessMemoryDump* pmd) override;
+
  private:
   friend class TestResourceManagerImpl;
 
   // Start loading the resource. virtual for testing.
   virtual void PreloadResourceFromJava(AndroidResourceType res_type,
                                        int res_id);
   virtual void RequestResourceFromJava(AndroidResourceType res_type,
                                        int res_id);
   virtual void RequestCrushedSpriteResourceFromJava(int bitmap_res_id,
                                                     int metadata_res_id,
@@ skipping 11 matching lines @@
   TintedResourceMap tinted_resources_;
 
   base::android::ScopedJavaGlobalRef<jobject> java_obj_;
 
   DISALLOW_COPY_AND_ASSIGN(ResourceManagerImpl);
 };
 
 }  // namespace ui
 
 #endif  // UI_ANDROID_RESOURCES_RESOURCE_MANAGER_IMPL_H_