Don't sleep when inline video start

bug:4563692

Change-Id: I0174403e3f78b5a637500fbaaf7f9219efe0cbc8
diff --git a/core/java/android/webkit/HTML5VideoInline.java b/core/java/android/webkit/HTML5VideoInline.java
index 1b9a25e..97dc291 100644
--- a/core/java/android/webkit/HTML5VideoInline.java
+++ b/core/java/android/webkit/HTML5VideoInline.java
@@ -7,6 +7,7 @@
 import android.webkit.HTML5VideoViewProxy;
 import android.view.Surface;
 import android.opengl.GLES20;
+import android.os.PowerManager;
 
 /**
  * @hide This is only used by the browser
@@ -51,6 +52,7 @@
     public void prepareDataAndDisplayMode(HTML5VideoViewProxy proxy) {
         super.prepareDataAndDisplayMode(proxy);
         setFrameAvailableListener(proxy);
+        mPlayer.setWakeMode(proxy.getContext(), PowerManager.FULL_WAKE_LOCK);
     }
 
     // Pause the play and update the play/pause button