Start using deferred rendering for WebView on L.

ui/gl/android/surface_texture.cc

Index: ui/gl/android/surface_texture.cc
diff --git a/ui/gl/android/surface_texture.cc b/ui/gl/android/surface_texture.cc
index 1c5b788c2bbba24ee16c76b82cde77c6c666d592..cb1f93f45ae353ecfd24891ed47f37faa8a29a72 100644
--- a/ui/gl/android/surface_texture.cc
+++ b/ui/gl/android/surface_texture.cc
@@ -47,6 +47,14 @@ void SurfaceTexture::SetFrameAvailableCallbackOnAnyThread(
       reinterpret_cast<intptr_t>(new SurfaceTextureListener(callback, true)));
 }
 
+void SurfaceTexture::SetFrameAvailableCallbackOnSeparateThread(
+    const base::Closure& callback) {
+  JNIEnv* env = base::android::AttachCurrentThread();
+  Java_SurfaceTexturePlatformWrapper_setFrameAvailableCallbackOnSeparateThread(
+      env, j_surface_texture_.obj(),
+      reinterpret_cast<intptr_t>(new SurfaceTextureListener(callback, true)));
+}
+
 void SurfaceTexture::UpdateTexImage() {
   JNIEnv* env = base::android::AttachCurrentThread();
   Java_SurfaceTexturePlatformWrapper_updateTexImage(env,