Adds UMA histograms for desktop tab and audio capture through

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': [
     '../base/base.gyp:base_static',
     '../cc/cc.gyp:cc',
     '../cc/cc.gyp:cc_surfaces',
     '../components/leveldb/leveldb.gyp:leveldb_lib',
@@ skipping 1035 matching lines @@
       'browser/media/android/url_provision_fetcher.h',
       'browser/media/audible_metrics.cc',
       'browser/media/audible_metrics.h',
       'browser/media/audio_stream_monitor.cc',
       'browser/media/audio_stream_monitor.h',
       'browser/media/capture/audio_mirroring_manager.cc',
       'browser/media/capture/audio_mirroring_manager.h',
       'browser/media/capture/cursor_renderer.h',
       'browser/media/capture/cursor_renderer_aura.cc',
       'browser/media/capture/cursor_renderer_aura.h',
+      'browser/media/capture/desktop_capture_device_uma_types.cc',
+      'browser/media/capture/desktop_capture_device_uma_types.h',
       'browser/media/capture/web_contents_audio_input_stream.cc',
       'browser/media/capture/web_contents_audio_input_stream.h',
       'browser/media/capture/web_contents_audio_muter.cc',
       'browser/media/capture/web_contents_audio_muter.h',
       'browser/media/capture/web_contents_tracker.cc',
       'browser/media/capture/web_contents_tracker.h',
       'browser/media/capture/web_contents_video_capture_device.cc',
       'browser/media/capture/web_contents_video_capture_device.h',
       'browser/media/capture/window_activity_tracker.h',
       'browser/media/capture/window_activity_tracker_aura.cc',
@@ skipping 883 matching lines @@
     }],
     ['enable_webrtc==1 and OS=="linux"', {
       'dependencies': [
         '../third_party/libjingle/libjingle.gyp:libjingle_webrtc',
       ],
     }],
     ['enable_webrtc==1 and (OS=="linux" or OS=="mac" or OS=="win")', {
       'sources': [
         'browser/media/capture/desktop_capture_device.cc',
         'browser/media/capture/desktop_capture_device.h',
-        'browser/media/capture/desktop_capture_device_uma_types.cc',
-        'browser/media/capture/desktop_capture_device_uma_types.h',
       ],
       'dependencies': [
         '../third_party/webrtc/modules/modules.gyp:desktop_capture',
       ],
       'defines': [
         'ENABLE_SCREEN_CAPTURE=1',
       ],
     }],
     ['enable_webrtc==1 and use_aura==1', {
       'sources': [
@@ skipping 240 matching lines @@
     ['enable_webvr==1 and OS=="android"', {
       'sources': [
         'browser/vr/android/cardboard/cardboard_vr_device.cc',
         'browser/vr/android/cardboard/cardboard_vr_device.h',
         'browser/vr/android/cardboard/cardboard_vr_device_provider.cc',
         'browser/vr/android/cardboard/cardboard_vr_device_provider.h',
       ],
     }],
   ],
 }