MemoryPressure: sends the signal to the renderer.

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',
     '../components/tracing.gyp:tracing',
     '../media/media.gyp:media',
     '../net/net.gyp:net',
@@ skipping 249 matching lines @@
     'common/media/audio_messages.h',
     'common/media/media_param_traits.cc',
     'common/media/media_param_traits.h',
     'common/media/media_player_messages_android.h',
     'common/media/media_stream_messages.h',
     'common/media/media_stream_options.cc',
     'common/media/media_stream_options.h',
     'common/media/video_capture.h',
     'common/media/video_capture_messages.h',
     'common/memory_benchmark_messages.h',
+    'common/memory_pressure_listener_messages.h',
     'common/message_router.cc',
     'common/message_router.h',
     'common/mime_registry_messages.h',
     'common/navigation_gesture.h',
     'common/net/url_fetcher.cc',
     'common/net/url_request_user_data.cc',
     'common/net/url_request_user_data.h',
     'common/p2p_messages.h',
     'common/p2p_sockets.h',
     'common/page_zoom.cc',
@@ skipping 255 matching lines @@
         '..\\third_party\\directxsdk\\files\\Redist\\<(input)',
         '<(output)',
         '<(PRODUCT_DIR)',
         ],
         'msvs_cygwin_shell': 1,
       },
      ]
     }],
   ],
 }