Android: Move YuvConverter to its own file

webrtc/api/BUILD.gn

 # Copyright (c) 2015 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.
 
 import("../build/webrtc.gni")
 if (is_android) {
@@ skipping 279 matching lines @@
       "android/java/src/org/webrtc/StatsReport.java",
       "android/java/src/org/webrtc/SurfaceTextureHelper.java",
       "android/java/src/org/webrtc/SurfaceViewRenderer.java",
       "android/java/src/org/webrtc/VideoCapturer.java",
       "android/java/src/org/webrtc/VideoCapturerAndroid.java",
       "android/java/src/org/webrtc/VideoFileRenderer.java",
       "android/java/src/org/webrtc/VideoRenderer.java",
       "android/java/src/org/webrtc/VideoRendererGui.java",
       "android/java/src/org/webrtc/VideoSource.java",
       "android/java/src/org/webrtc/VideoTrack.java",
+      "android/java/src/org/webrtc/YuvConverter.java",
     ]
 
     deps = [
       "//webrtc/base:base_java",
     ]
   }
 }
 
 # GYP version: webrtc/api/api.gyp:rtc_stats_api
 rtc_source_set("rtc_stats_api") {
@@ skipping 158 matching lines @@
 
       shared_libraries = [ ":libjingle_peerconnection_so" ]
     }
 
     android_resources("libjingle_peerconnection_android_unittest_resources") {
       resource_dirs = [ "androidtests/res" ]
       custom_package = "org.webrtc"
     }
   }
 }