[tracing] Introduce MemoryDumpArgs to enable light and heavy dumps

content/common/host_shared_bitmap_manager.h

 // Copyright (c) 2013 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 CONTENT_COMMON_HOST_SHARED_BITMAP_MANAGER_H_
 #define CONTENT_COMMON_HOST_SHARED_BITMAP_MANAGER_H_
 
 #include <map>
 #include <set>
 
@@ skipping 55 matching lines @@
   static HostSharedBitmapManager* current();
 
   // cc::SharedBitmapManager implementation.
   scoped_ptr<cc::SharedBitmap> AllocateSharedBitmap(
       const gfx::Size& size) override;
   scoped_ptr<cc::SharedBitmap> GetSharedBitmapFromId(
       const gfx::Size& size,
       const cc::SharedBitmapId&) override;
 
   // base::trace_event::MemoryDumpProvider implementation.
-  bool OnMemoryDump(base::trace_event::ProcessMemoryDump* pmd) override;
+  bool OnMemoryDump(const base::trace_event::MemoryDumpArgs& args,
+                    base::trace_event::ProcessMemoryDump* pmd) override;
 
   size_t AllocatedBitmapCount() const;
 
   void FreeSharedMemoryFromMap(const cc::SharedBitmapId& id);
 
  private:
   friend class HostSharedBitmapManagerClient;
 
   void AllocateSharedBitmapForChild(
       base::ProcessHandle process_handle,
@@ skipping 11 matching lines @@
   typedef base::hash_map<cc::SharedBitmapId, scoped_refptr<BitmapData> >
       BitmapMap;
   BitmapMap handle_map_;
 
   DISALLOW_COPY_AND_ASSIGN(HostSharedBitmapManager);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_HOST_SHARED_BITMAP_MANAGER_H_