Add the ability to clear the shader disk cache.

content/content_browser.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': [
     'browser/speech/proto/speech_proto.gyp:speech_proto',
     '../base/base.gyp:base_static',
     '../crypto/crypto.gyp:crypto',
     '../google_apis/google_apis.gyp:google_apis',
@@ skipping 127 matching lines @@
     'public/browser/resource_dispatcher_host.h',
     'public/browser/resource_dispatcher_host_delegate.cc',
     'public/browser/resource_dispatcher_host_delegate.h',
     'public/browser/resource_dispatcher_host_login_delegate.h',
     'public/browser/resource_request_details.cc',
     'public/browser/resource_request_details.h',
     'public/browser/resource_request_info.h',
     'public/browser/resource_throttle.h',
     'public/browser/save_page_type.h',
     'public/browser/session_storage_namespace.h',
+    'public/browser/shader_disk_cache.cc',
+    'public/browser/shader_disk_cache.h',
     'public/browser/site_instance.h',
     'public/browser/speech_recognition_event_listener.h',
     'public/browser/speech_recognition_manager.h',
     'public/browser/speech_recognition_manager_delegate.h',
     'public/browser/speech_recognition_preferences.h',
     'public/browser/speech_recognition_session_config.cc',
     'public/browser/speech_recognition_session_config.h',
     'public/browser/speech_recognition_session_context.cc',
     'public/browser/speech_recognition_session_context.h',
     'public/browser/storage_partition.h',
@@ skipping 327 matching lines @@
     'browser/gpu/gpu_internals_ui.cc',
     'browser/gpu/gpu_internals_ui.h',
     'browser/gpu/gpu_process_host.cc',
     'browser/gpu/gpu_process_host.h',
     'browser/gpu/gpu_process_host_ui_shim.cc',
     'browser/gpu/gpu_process_host_ui_shim.h',
     'browser/gpu/gpu_surface_tracker.cc',
     'browser/gpu/gpu_surface_tracker.h',
     'browser/gpu/gpu_util.cc',
     'browser/gpu/gpu_util.h',
-    'browser/gpu/shader_disk_cache.cc',
-    'browser/gpu/shader_disk_cache.h',
+    'browser/gpu/shader_disk_cache_impl.cc',
+    'browser/gpu/shader_disk_cache_impl.h',
     'browser/histogram_controller.cc',
     'browser/histogram_controller.h',
     'browser/histogram_internals_request_job.cc',
     'browser/histogram_internals_request_job.h',
     'browser/histogram_message_filter.cc',
     'browser/histogram_message_filter.h',
     'browser/histogram_subscriber.h',
     'browser/histogram_synchronizer.cc',
     'browser/histogram_synchronizer.h',
     'browser/host_zoom_map_impl.cc',
@@ skipping 757 matching lines @@
         ['exclude', '^browser/speech/'],
       ],
     }],
     ['linux_use_libgps==1', {
       'dependencies': [
         '../build/linux/system.gyp:libgps',
       ],
     }],
   ],
 }