Add GPU memory tab to the task manager.

content/content_common.gypi

 # Copyright (c) 2012 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.
 
 {
   'dependencies': [
     '../base/base.gyp:base',
     '../build/temp_gyp/googleurl.gyp:googleurl',
     '../gpu/gpu.gyp:gles2_implementation',
     '../gpu/gpu.gyp:gpu_ipc',
@@ skipping 39 matching lines @@
     'public/common/dx_diag_node.h',
     'public/common/file_chooser_params.cc',
     'public/common/file_chooser_params.h',
     'public/common/frame_navigate_params.cc',
     'public/common/frame_navigate_params.h',
     'public/common/geoposition.cc',
     'public/common/geoposition.h',
     'public/common/gpu_feature_type.h',
     'public/common/gpu_info.cc',
     'public/common/gpu_info.h',
+    'public/common/gpu_memory_stats.cc',
+    'public/common/gpu_memory_stats.h',
     'public/common/gpu_performance_stats.h',
     'public/common/injection_test_mac.h',
     'public/common/injection_test_win.h',
     'public/common/javascript_message_type.h',
     'public/common/main_function_params.h',
     'public/common/media_stream_request.cc',
     'public/common/media_stream_request.h',
     'public/common/page_transition_types.cc',
     'public/common/page_transition_types.h',
     'public/common/page_type.h',
@@ skipping 135 matching lines @@
     'common/gpu/gpu_channel.cc',
     'common/gpu/gpu_channel.h',
     'common/gpu/gpu_channel_manager.cc',
     'common/gpu/gpu_channel_manager.h',
     'common/gpu/gpu_command_buffer_stub.cc',
     'common/gpu/gpu_command_buffer_stub.h',
     'common/gpu/gpu_config.h',
     'common/gpu/gpu_memory_allocation.h',
     'common/gpu/gpu_memory_manager.cc',
     'common/gpu/gpu_memory_manager.h',
+    'common/gpu/gpu_memory_tracking.h',
     'common/gpu/gpu_messages.h',
     'common/gpu/gpu_process_launch_causes.h',
     'common/gpu/gpu_surface_lookup.h',
     'common/gpu/gpu_surface_lookup.cc',
     'common/gpu/stream_texture_manager_android.cc',
     'common/gpu/stream_texture_manager_android.h',
     'common/gpu/gpu_watchdog.h',
     'common/gpu/image_transport_surface.h',
     'common/gpu/image_transport_surface.cc',
     'common/gpu/image_transport_surface_android.cc',
@@ skipping 284 matching lines @@
         '../build/extract_from_cab.py',
         '..\\third_party\\directxsdk\\files\\Redist\\<(input)',
         '<(output)',
         '<(PRODUCT_DIR)',
         ],
       },
      ]
     }]
   ],
 }