fix for FB fetch on nexus 10 ES3.0

src/gpu/gl/GrGLCaps.h

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #ifndef GrGLCaps_DEFINED
 #define GrGLCaps_DEFINED
@@ skipping 154 matching lines @@
                kES_EXT_MsToTexture_MSFBOType == fMSFBOType;
     }
 
     /**
      * Some helper functions for encapsulating various extensions to read FB Buffer on openglES
      *
      * TODO(joshualitt) On desktop opengl 4.2+ we can achieve something similar to this effect
      */
     bool fbFetchSupport() const { return fFBFetchSupport; }
 
+    bool fbFetchNeedsCustomOutput() const { return fFBFetchNeedsCustomOutput; }
+
     const char* fbFetchColorName() const { return fFBFetchColorName; }
 
     const char* fbFetchExtensionString() const { return fFBFetchExtensionString; }
 
     InvalidateFBType invalidateFBType() const { return fInvalidateFBType; }
 
     /// What type of buffer mapping is supported?
     MapBufferType mapBufferType() const { return fMapBufferType; }
 
     /**
@@ skipping 180 matching lines @@
     bool fTextureRedSupport : 1;
     bool fImagingSupport  : 1;
     bool fTwoFormatLimit : 1;
     bool fFragCoordsConventionSupport : 1;
     bool fVertexArrayObjectSupport : 1;
     bool fES2CompatibilitySupport : 1;
     bool fUseNonVBOVertexAndIndexDynamicData : 1;
     bool fIsCoreProfile : 1;
     bool fFullClearIsFree : 1;
     bool fDropsTileOnZeroDivide : 1;
-    // TODO(joshualitt) encapsulate the FB Fetch logic in a feature object
     bool fFBFetchSupport : 1;
+    bool fFBFetchNeedsCustomOutput : 1;
 
     const char* fFBFetchColorName;
     const char* fFBFetchExtensionString;
 
     class ReadPixelsSupportedFormats {
     public:
         struct Key {
             GrGLenum fFormat;
             GrGLenum fType;
             GrGLenum fFboFormat;
@@ skipping 28 matching lines @@
         bool fValue;
     };
 
     mutable SkTHashCache<ReadPixelsSupportedFormats,
                          ReadPixelsSupportedFormats::Key> fReadPixelsSupportedCache;
 
     typedef GrDrawTargetCaps INHERITED;
 };
 
 #endif