Hook up android webview synchronous compositor GL init

content/public/browser/android/synchronous_compositor.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_PUBLIC_BROWSER_ANDROID_SYNCHRONOUS_COMPOSITOR_H_
 #define CONTENT_PUBLIC_BROWSER_ANDROID_SYNCHRONOUS_COMPOSITOR_H_
 
 #include "ui/gfx/rect.h"
 #include "ui/gfx/size.h"
 
@@ skipping 18 matching lines @@
   // instance as needed, but only if |client| is non-NULL.
   static void SetClientForWebContents(WebContents* contents,
                                       SynchronousCompositorClient* client);
 
   // Allows changing or resetting the client to NULL (this must be used if
   // the client is being deleted prior to the DidDestroyCompositor() call
   // being received by the client). Ownership of |client| remains with
   // the caller.
   virtual void SetClient(SynchronousCompositorClient* client) = 0;
 
-  // Returns true if the compositor is fully initialized and ready to receive
-  // calls to DemandDrawHw().
-  virtual bool IsHwReady() = 0;
-
-  // "On demand" SW draw, into the supplied canvas (observing the transform
-  // and clip set there-in).
-  virtual bool DemandDrawSw(SkCanvas* canvas) = 0;
+  // One-time synchronously initialize compositor for hardware draw.
+  // It is invalid to DemandDrawHw before this returns true.
+  virtual bool InitializeHwDraw() = 0;
 
   // "On demand" hardware draw. The content is first clipped to |damage_area|,
   // then transformed through |transform|, and finally clipped to |view_size|.
   virtual bool DemandDrawHw(
       gfx::Size view_size,
       const gfx::Transform& transform,
       gfx::Rect damage_area) = 0;
 
+  // "On demand" SW draw, into the supplied canvas (observing the transform
+  // and clip set there-in).
+  virtual bool DemandDrawSw(SkCanvas* canvas) = 0;
+
  protected:
   virtual ~SynchronousCompositor() {}
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_ANDROID_SYNCHRONOUS_COMPOSITOR_H_