Moving webrtc/stats/ into webrtc/api/ to resolve a circular dependency

all.gyp

 # Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
 #
 # Use of this source code is governed by a BSD-style license
 # that can be found in the LICENSE file in the root of the source
 # tree. An additional intellectual property rights grant can be found
 # in the file PATENTS.  All contributing project authors may
 # be found in the AUTHORS file in the root of the source tree.
 
 {
   'variables': {
@@ skipping 10 matching lines @@
       'dependencies': [
         'webrtc/api/api.gyp:*',
         'webrtc/base/base.gyp:*',
         'webrtc/common.gyp:*',
         'webrtc/common_audio/common_audio.gyp:*',
         'webrtc/common_video/common_video.gyp:*',
         'webrtc/media/media.gyp:*',
         'webrtc/modules/modules.gyp:*',
         'webrtc/p2p/p2p.gyp:*',
         'webrtc/pc/pc.gyp:*',
-        'webrtc/stats/stats.gyp:*',
         'webrtc/system_wrappers/system_wrappers.gyp:*',
         'webrtc/tools/tools.gyp:*',
         'webrtc/voice_engine/voice_engine.gyp:*',
         'webrtc/webrtc.gyp:*',
         '<(webrtc_vp8_dir)/vp8.gyp:*',
         '<(webrtc_vp9_dir)/vp9.gyp:*',
       ],
       'conditions': [
         ['OS=="android" and build_with_chromium==0', {
           'dependencies': [
@@ skipping 18 matching lines @@
         }],
         ['(OS=="ios" or (OS=="mac" and mac_deployment_target=="10.7"))', {
           'dependencies': [
             'webrtc/sdk/sdk.gyp:*',
           ],
         }],
       ],
     },
   ],
 }