Remove GrContext::applyGamma

include/gpu/GrContext.h

 /*
  * Copyright 2010 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrContext_DEFINED
 #define GrContext_DEFINED
 
@@ skipping 277 matching lines @@
      * @return true if the write succeeded, false if not. The write can fail because of an
      *         unsupported combination of surface and src configs.
      */
     bool writeSurfacePixels(GrSurface* surface,
                             int left, int top, int width, int height,
                             GrPixelConfig config, const void* buffer,
                             size_t rowBytes,
                             uint32_t pixelOpsFlags = 0);
 
     /**
-     * Copies contents of src to dst, while applying a gamma curve. Fails if the two surfaces
-     * are not identically sized.
-     * @param dst           the surface to copy to.
-     * @param src           the texture to copy from.
-     * @param gamma         the gamma value to apply.
-     */
-    bool applyGamma(GrRenderTarget* dst, GrTexture* src, SkScalar gamma);
-
-    /**
      * Copies a rectangle of texels from src to dst.
      * @param dst           the surface to copy to.
      * @param src           the surface to copy from.
      * @param srcRect       the rectangle of the src that should be copied.
      * @param dstPoint      the translation applied when writing the srcRect's pixels to the dst.
      */
     bool copySurface(GrSurface* dst,
                      GrSurface* src,
                      const SkIRect& srcRect,
                      const SkIPoint& dstPoint);
@@ skipping 179 matching lines @@
     SkAutoTUnref<const GrCaps>  fCaps;
     uint32_t                    fContextUniqueID;
 
     friend class GrContext;
     friend class SkImage;
 
     typedef SkRefCnt INHERITED;
 };
 
 #endif