Revert 248827 "android: Migrate old content readback to use asyn..."

trunk/src/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 "cc/resources/ui_resource_bitmap.h"
 #include "cc/resources/ui_resource_client.h"
 #include "content/common/content_export.h"
 #include "ui/gfx/native_widget_types.h"
 #include "ui/gfx/rect.h"
 #include "ui/gfx/size.h"
 
-class SkBitmap;
+#include "third_party/WebKit/public/platform/WebGraphicsContext3D.h"
 
 namespace cc {
 class Layer;
 }
 
 namespace gfx {
 class JavaBitmap;
 }
 
 namespace content {
@@ skipping 38 matching lines @@
   virtual void SetHasTransparentBackground(bool flag) = 0;
 
   // Attempts to composite and read back the result into the provided buffer.
   // 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;
 
   // Composite immediately. Used in single-threaded mode.
   virtual void Composite() = 0;
 
-  // Generates a UIResource and returns a UIResourceId.  |is_transient|
-  // indicates whether or not to release the resource once the bitmap
-  // has been uploaded. May return 0.
-  virtual cc::UIResourceId GenerateUIResource(const SkBitmap& bitmap,
-                                              bool is_transient) = 0;
-
-  // Generates an ETC1 compressed UIResource.  See above for |is_transient|.
-  // May return 0.
-  virtual cc::UIResourceId GenerateCompressedUIResource(const gfx::Size& size,
-                                                        void* pixels,
-                                                        bool is_transient) = 0;
+  // Generates a UIResource and returns a UIResourceId.  May return 0.
+  virtual cc::UIResourceId GenerateUIResource(
+      const cc::UIResourceBitmap& bitmap) = 0;
 
   // Deletes a UIResource.
   virtual void DeleteUIResource(cc::UIResourceId resource_id) = 0;
 
+  // Generates an OpenGL texture and returns a texture handle.  May return 0
+  // if the current context is lost.
+  virtual blink::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 blink::WebGLId GenerateCompressedTexture(gfx::Size& size,
+                                                    int data_size,
+                                                    void* data) = 0;
+
+  // Deletes an OpenGL texture.
+  virtual void DeleteTexture(blink::WebGLId texture_id) = 0;
+
+  // Grabs a copy of |texture_id| and saves it into |bitmap|.  No scaling is
+  // done.  It is assumed that the texture size matches that of the bitmap.
+  virtual bool CopyTextureToBitmap(blink::WebGLId texture_id,
+                                   gfx::JavaBitmap& bitmap) = 0;
+
+  // Grabs a copy of |texture_id| and saves it into |bitmap|.  No scaling is
+  // done. |src_rect| allows the caller to specify which rect of |texture_id|
+  // to copy to |bitmap|.  It needs to match the size of |bitmap|.  Returns
+  // true if the |texture_id| was copied into |bitmap|, false if not.
+  virtual bool CopyTextureToBitmap(blink::WebGLId texture_id,
+                                   const gfx::Rect& src_rect,
+                                   gfx::JavaBitmap& bitmap) = 0;
  protected:
   Compositor() {}
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_ANDROID_COMPOSITOR_H_