Add PlatformPictureSkia and RecordingPlatformDeviceSkia.

skia/ext/platform_canvas.h

 // Copyright (c) 2011 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 SKIA_EXT_PLATFORM_CANVAS_H_
 #define SKIA_EXT_PLATFORM_CANVAS_H_
 
 // The platform-specific device will include the necessary platform headers
 // to get the surface type.
 #include "skia/ext/platform_device.h"
@@ skipping 97 matching lines @@
 // transparency: this will enable some optimizations.
 SK_API SkCanvas* CreateBitmapCanvas(int width, int height, bool is_opaque);
 
 // Non-crashing version of CreateBitmapCanvas
 // returns NULL if allocation fails for any reason.
 // Use this instead of CreateBitmapCanvas in places that are likely to
 // attempt to allocate very large canvases (therefore likely to fail),
 // and where it is possible to recover gracefully from the failed allocation.
 SK_API SkCanvas* TryCreateBitmapCanvas(int width, int height, bool is_opaque);
 
+// Returns support for native platform routines.
+SK_API PlatformDevice::PlatformPaint PlatformPaintSupport(

[sky, 2012/09/26 21:17:32]

Can we have a Get in here, eg GetPlatformPaintSupport? Or just GetPlatformPaint
which matches the name of what is returned.

+    const SkCanvas* canvas);
+
 // Returns true if native platform routines can be used to draw on the
 // given canvas. If this function returns false, BeginPlatformPaint will
 // return NULL PlatformSurface.
-SK_API bool SupportsPlatformPaint(const SkCanvas* canvas);
+SK_API bool IsPlatformPaintSupported(const SkCanvas* canvas);
 
 // Draws into the a native platform surface, |context|.  Forwards to
 // DrawToNativeContext on a PlatformDevice instance bound to the top device.
 // If no PlatformDevice instance is bound, is a no-operation.
 SK_API void DrawToNativeContext(SkCanvas* canvas, PlatformSurface context,
                                 int x, int y, const PlatformRect* src_rect);
 
 // Sets the opacity of each pixel in the specified region to be opaque.
 SK_API void MakeOpaque(SkCanvas* canvas, int x, int y, int width, int height);
 
@@ skipping 23 matching lines @@
   PlatformSurface platform_surface_;
 
   // Disallow copy and assign
   ScopedPlatformPaint(const ScopedPlatformPaint&);
   ScopedPlatformPaint& operator=(const ScopedPlatformPaint&);
 };
 
 }  // namespace skia
 
 #endif  // SKIA_EXT_PLATFORM_CANVAS_H_