Remove GrContext::applyGamma

include/gpu/GrContext.h

Index: include/gpu/GrContext.h
diff --git a/include/gpu/GrContext.h b/include/gpu/GrContext.h
index deddb462d687b8444405d5279652eed4cb5e8e93..667301e61d631026556508a3d4cbb40bded45c54 100644
--- a/include/gpu/GrContext.h
+++ b/include/gpu/GrContext.h
@@ -295,15 +295,6 @@ public:
                             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.