Android WebView: Make a custom Picture subclass

android_webview/browser/browser_view_renderer.h

 // Copyright (c) 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 ANDROID_WEBVIEW_BROWSER_BROWSER_VIEW_RENDERER_H_
 #define ANDROID_WEBVIEW_BROWSER_BROWSER_VIEW_RENDERER_H_
 
 #include "base/android/scoped_java_ref.h"
+#include "skia/ext/refptr.h"
 #include "ui/gfx/point.h"
 #include "ui/gfx/rect.h"
 #include "ui/gfx/vector2d_f.h"
 
+class SkPicture;
 struct AwDrawGLInfo;
 struct AwDrawSWFunctionTable;
 
 namespace content {
 class ContentViewCore;
 }
 
 namespace android_webview {
 
 // Interface for all the WebView-specific content rendering operations.
@@ skipping 54 matching lines @@
         JNIEnv* env,
         const base::android::JavaRef<jobject>& jbitmap) = 0;
 
    protected:
     virtual ~JavaHelper() {}
   };
 
   // Global hookup methods.
   static void SetAwDrawSWFunctionTable(AwDrawSWFunctionTable* table);
   static AwDrawSWFunctionTable* GetAwDrawSWFunctionTable();
-  static bool IsSkiaVersionCompatible();
 
   // Rendering methods.
 
   // Main handler for view drawing: performs a SW draw immediately, or sets up
   // a subsequent GL Draw (via Client::RequestDrawGL) and returns true. A false
   // return value indicates nothing was or will be drawn.
   // |java_canvas| is the target of the draw. |is_hardware_canvas| indicates
   // a GL Draw maybe possible on this canvas. |scroll| if the view's current
   // scroll offset. |clip| is the canvas's clip bounds. |visible_rect| is the
   // intersection of the view size and the window in window coordinates.
   virtual bool OnDraw(jobject java_canvas,
                       bool is_hardware_canvas,
                       const gfx::Vector2d& scroll,
                       const gfx::Rect& clip) = 0;
 
   // Called in response to a prior Client::RequestDrawGL() call. See
   // AwDrawGLInfo documentation for more details of the contract.
   virtual void DrawGL(AwDrawGLInfo* draw_info) = 0;
 
   // The global visible rect changed and this is the new value.
   virtual void SetGlobalVisibleRect(const gfx::Rect& visible_rect) = 0;
 
   // CapturePicture API methods.
-  virtual base::android::ScopedJavaLocalRef<jobject> CapturePicture(
-      int width,
-      int height) = 0;
+  virtual skia::RefPtr<SkPicture> CapturePicture(int width, int height) = 0;
   virtual void EnableOnNewPicture(bool enabled) = 0;
 
   // View update notifications.
   virtual void OnVisibilityChanged(bool visible) = 0;
   virtual void OnSizeChanged(int width, int height) = 0;
   virtual void OnAttachedToWindow(int width, int height) = 0;
   virtual void OnDetachedFromWindow() = 0;
 
   // Sets the scale for logical<->physical pixel conversions.
   virtual void SetDipScale(float dip_scale) = 0;
   virtual void SetPageScaleFactor(float page_scale_factor) = 0;
 
   // Set the root layer scroll offset to |new_value|.
   virtual void ScrollTo(gfx::Vector2d new_value) = 0;
 
   // Android views hierarchy gluing.
   virtual bool IsAttachedToWindow() = 0;
   virtual bool IsViewVisible() = 0;
   virtual gfx::Rect GetScreenRect() = 0;
 
   virtual ~BrowserViewRenderer() {}
 };
 
 }  // namespace android_webview
 
 #endif  // ANDROID_WEBVIEW_BROWSER_BROWSER_VIEW_RENDERER_H_