Remove forceRenderTargetFlush (unused)

src/gpu/GrGpu.h

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrGpu_DEFINED
 #define GrGpu_DEFINED
 
@@ skipping 123 matching lines @@
      * @ return the quad index buffer
      */
     const GrIndexBuffer* getQuadIndexBuffer() const;
 
     /**
      * Resolves MSAA.
      */
     void resolveRenderTarget(GrRenderTarget* target);
 
     /**
-     * Ensures that the current render target is actually set in the
-     * underlying 3D API. Used when client wants to use 3D API to directly
-     * render to the RT.
-     */
-    void forceRenderTargetFlush();
-
-    /**
      * Gets a preferred 8888 config to use for writing/reading pixel data to/from a surface with
      * config surfaceConfig. The returned config must have at least as many bits per channel as the
      * readConfig or writeConfig param.
      */
     virtual GrPixelConfig preferredReadPixelsConfig(GrPixelConfig readConfig,
                                                     GrPixelConfig surfaceConfig) const {
         return readConfig;
     }
     virtual GrPixelConfig preferredWritePixelsConfig(GrPixelConfig writeConfig,
                                                      GrPixelConfig surfaceConfig) const {
@@ skipping 274 matching lines @@
 
     // overridden by backend-specific derived class to perform the draw call.
     virtual void onGpuDraw(const DrawInfo&) = 0;
 
     // overridden by backend-specific derived class to perform the path stenciling.
     virtual void onGpuStencilPath(const GrPath*, SkPath::FillType) = 0;
     virtual void onGpuDrawPath(const GrPath*, SkPath::FillType) = 0;
     virtual void onGpuDrawPaths(size_t, const GrPath**, const SkMatrix*,
                                 SkPath::FillType, SkStrokeRec::Style) = 0;
 
-    // overridden by backend-specific derived class to perform flush
-    virtual void onForceRenderTargetFlush() = 0;
-
     // overridden by backend-specific derived class to perform the read pixels.
     virtual bool onReadPixels(GrRenderTarget* target,
                               int left, int top, int width, int height,
                               GrPixelConfig,
                               void* buffer,
                               size_t rowBytes) = 0;
 
     // overridden by backend-specific derived class to perform the texture update
     virtual bool onWriteTexturePixels(GrTexture* texture,
                                       int left, int top, int width, int height,
@@ skipping 67 matching lines @@
     // these are mutable so they can be created on-demand
     mutable GrIndexBuffer*                                              fQuadIndexBuffer;
     // Used to abandon/release all resources created by this GrGpu. TODO: Move this
     // functionality to GrResourceCache.
     ResourceList                                                        fResourceList;
 
     typedef GrDrawTarget INHERITED;
 };
 
 #endif