Finish fixing playback control focus

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=140635851

library/src/main/res/values-v11/styles.xml

+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2016 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<resources>
+
+  <style name="ExoMediaButton">
+    <item name="android:background">?android:attr/selectableItemBackground</item>
+    <item name="android:layout_width">@dimen/exo_media_button_width</item>
+    <item name="android:layout_height">@dimen/exo_media_button_height</item>
+  </style>
+
+</resources>

library/src/main/res/values/attrs.xml

@@ -14,6 +14,7 @@
      limitations under the License.
      limitations under the License.
 -->
 -->
 <resources>
 <resources>
+
   <!-- Must be kept in sync with AspectRatioFrameLayout -->
   <!-- Must be kept in sync with AspectRatioFrameLayout -->
   <attr name="resize_mode" format="enum">
   <attr name="resize_mode" format="enum">
     <enum name="fit" value="0"/>
     <enum name="fit" value="0"/>
@@ -21,6 +22,7 @@
     <enum name="fixed_height" value="2"/>
     <enum name="fixed_height" value="2"/>
     <enum name="fill" value="3"/>
     <enum name="fill" value="3"/>
   </attr>
   </attr>
+
   <!-- Must be kept in sync with SimpleExoPlayerView -->
   <!-- Must be kept in sync with SimpleExoPlayerView -->
   <attr name="surface_type" format="enum">
   <attr name="surface_type" format="enum">
     <enum name="none" value="0"/>
     <enum name="none" value="0"/>

library/src/main/res/values/constants.xml

+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2016 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<resources>
+
+  <dimen name="exo_media_button_width">71dp</dimen>
+  <dimen name="exo_media_button_height">52dp</dimen>
+
+</resources>

library/src/main/res/values/ids.xml

@@ -14,6 +14,7 @@
      limitations under the License.
      limitations under the License.
 -->
 -->
 <resources>
 <resources>
+
   <item name="exo_content_frame" type="id"/>
   <item name="exo_content_frame" type="id"/>
   <item name="exo_shutter" type="id"/>
   <item name="exo_shutter" type="id"/>
   <item name="exo_subtitles" type="id"/>
   <item name="exo_subtitles" type="id"/>
@@ -29,4 +30,5 @@
   <item name="exo_duration" type="id"/>
   <item name="exo_duration" type="id"/>
   <item name="exo_position" type="id"/>
   <item name="exo_position" type="id"/>
   <item name="exo_progress" type="id"/>
   <item name="exo_progress" type="id"/>
+
 </resources>
 </resources>

library/src/main/res/values/styles.xml

@@ -17,8 +17,8 @@
 
 
   <style name="ExoMediaButton">
   <style name="ExoMediaButton">
     <item name="android:background">@null</item>
     <item name="android:background">@null</item>
-    <item name="android:layout_width">71dp</item>
-    <item name="android:layout_height">52dp</item>
+    <item name="android:layout_width">@dimen/exo_media_button_width</item>
+    <item name="android:layout_height">@dimen/exo_media_button_height</item>
   </style>
   </style>
 
 
   <style name="ExoMediaButton.Previous">
   <style name="ExoMediaButton.Previous">