Implement OSMesa image transport for TOUCH_UI builds

chrome/browser/renderer_host/accelerated_surface_container_touch.h

Index: chrome/browser/renderer_host/accelerated_surface_container_touch.h
diff --git a/chrome/browser/renderer_host/accelerated_surface_container_touch.h b/chrome/browser/renderer_host/accelerated_surface_container_touch.h
index 4303cd87a44d835d1b47f1b652613e0f977827c9..2af2cbbeb0d27410f1b57a9be1adfa56914c8f7a 100644
--- a/chrome/browser/renderer_host/accelerated_surface_container_touch.h
+++ b/chrome/browser/renderer_host/accelerated_surface_container_touch.h
@@ -8,6 +8,7 @@
 
 #include "base/basictypes.h"
 #include "ui/gfx/compositor/compositor_gl.h"
+#include "ui/gfx/surface/transport_dib.h"
 
 // Helper class for storing image data from the GPU process renderered
 // on behalf of the RWHVV. It assumes that GL context that will display
@@ -16,14 +17,22 @@
 class AcceleratedSurfaceContainerTouch : public ui::TextureGL {
  public:
   static AcceleratedSurfaceContainerTouch* CreateAcceleratedSurfaceContainer(
-      const gfx::Size& size,
-      uint64 surface_handle);
+      const gfx::Size& size);
 
   // TextureGL implementation
   virtual void SetCanvas(const SkCanvas& canvas,
                          const gfx::Point& origin,
                          const gfx::Size& overall_size) OVERRIDE;
 
+  // Initialize the surface container, and returns an ID for it.
+  // The |surface_id| given to this function may be modified, and the returned
+  // value should be used to identify the object.
+  virtual bool Initialize(uint64 *surface_id) = 0;
+
+  // Some implementations of this class use shared memory, this the handle
+  // to the shared buffer, which is part of the surface container.
+  virtual TransportDIB::Handle handle() const;

[jonathan.backer, 2011/09/21 20:27:36]

Maybe specify the return value in the comment, if not implemented.

+
  protected:
   explicit AcceleratedSurfaceContainerTouch(const gfx::Size& size);