Expose the WebGraphicsContext3D for Android

content/public/browser/android/compositor.h

 // Copyright (c) 2012 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_COMPOSITOR_H_
 #define CONTENT_PUBLIC_BROWSER_ANDROID_COMPOSITOR_H_
 
 #include "base/callback.h"
 #include "ui/gfx/native_widget_types.h"
 #include "ui/gfx/rect.h"
 #include "ui/gfx/size.h"
 
+#include "third_party/WebKit/Source/Platform/chromium/public/WebGraphicsContext3D.h"
+
+namespace gfx {
+class JavaBitmap;
+}
+
 namespace WebKit {
 class WebLayer;
 }
 
 namespace content {
 
 // An interface to the browser-side compositor.
 class Compositor {
  public:
   virtual ~Compositor() {}
@@ skipping 18 matching lines @@
   // The buffer must be at least window width * height * 4 (RGBA) bytes large.
   // The buffer is not modified if false is returned.
   virtual bool CompositeAndReadback(void *pixels, const gfx::Rect& rect) = 0;
 
   // Callback to be run after the frame has been drawn. It passes back
   // a synchronization point identifier.
   typedef base::Callback<void(uint32)> SurfacePresentedCallback;
 
   virtual void OnSurfaceUpdated(const SurfacePresentedCallback& callback) = 0;
 
+  // Generates an OpenGL texture and returns a texture handle.  May return 0
+  // if the current context is lost.
+  virtual WebKit::WebGLId GenerateTexture(gfx::JavaBitmap& bitmap) = 0;
+
+  // Generates an OpenGL compressed texture and returns a texture handle.  May
+  // return 0 if the current context is lost.
+  virtual WebKit::WebGLId GenerateCompressedTexture(gfx::Size& size,
+                                                    int data_size,
+                                                    void* data) = 0;
+
+  // Deletes an OpenGL texture.  Returns true if the texture could be deleted,
+  // or false if the texture could not be deleted due to a lost context.

[no sievers, 2012/10/12 22:45:56]

I think it maybe be hard to guarantee without a sync flush that the commands
landed. It might be easier to handle it internally and not burden the caller
with trying to delete it again, i.e. just make this return void instead.

[David Trainor- moved to gerrit, 2012/10/15 19:01:56]

Done.

+  virtual bool DeleteTexture(WebKit::WebGLId texture_id) = 0;
+
  protected:
   Compositor() {}
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_ANDROID_COMPOSITOR_H_