make the filter mode for GrTextureAccess an enum so we can plumb down

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 883 matching lines @@
     /// draw state is left unmodified.
     GrDrawTarget* prepareToDraw(const GrPaint*, BufferedDraw, AutoRestoreEffects*);
 
     void internalDrawPath(GrDrawTarget* target, bool useAA, const SkPath& path,
                           const SkStrokeRec& stroke);
 
     GrTexture* createResizedTexture(const GrTextureDesc& desc,
                                     const GrCacheID& cacheID,
                                     void* srcData,
                                     size_t rowBytes,
-                                    bool needsFiltering);
+                                    bool filter);
 
     // Needed so GrTexture's returnToCache helper function can call
     // addExistingTextureToCache
     friend class GrTexture;
 
     // Add an existing texture to the texture cache. This is intended solely
     // for use with textures released from an GrAutoScratchTexture.
     void addExistingTextureToCache(GrTexture* texture);
 
     /**
@@ skipping 97 matching lines @@
     }
 
     GrTexture* texture() { return fTexture; }
 
 private:
     GrContext*                    fContext;
     GrTexture*                    fTexture;
 };
 
 #endif