remove Proxy entrypoints for canHandleFilter

src/core/SkDeviceImageFilterProxy.h

 /*
  * Copyright 2012 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkDeviceImageFilterProxy_DEFINED
 #define SkDeviceImageFilterProxy_DEFINED
 
@@ skipping 13 matching lines @@
         SkBaseDevice::CreateInfo cinfo(SkImageInfo::MakeN32Premul(w, h),
                                        SkBaseDevice::kNever_TileUsage,
                                        kUnknown_SkPixelGeometry,
                                        true /*forImageFilter*/);
         SkBaseDevice* dev = fDevice->onCreateDevice(cinfo, NULL);
         if (NULL == dev) {
             dev = SkBitmapDevice::Create(cinfo.fInfo);
         }
         return dev;
     }
-    bool canHandleImageFilter(const SkImageFilter* filter) override {
-        return fDevice->canHandleImageFilter(filter);
+    bool filterImage(const SkImageFilter* filter, const SkBitmap& src,
+                     const SkImageFilter::Context& ctx, SkBitmap* res, SkIPoint* offset) override {
+        return fDevice->filterImage(filter, src, ctx, res, offset);
     }
-    virtual bool filterImage(const SkImageFilter* filter, const SkBitmap& src,
-                             const SkImageFilter::Context& ctx,
-                             SkBitmap* result, SkIPoint* offset) override {
-        return fDevice->filterImage(filter, src, ctx, result, offset);
-    }
-
     const SkSurfaceProps* surfaceProps() const override {
         return &fProps;
     }
 
 private:
     SkBaseDevice*  fDevice;
     const SkSurfaceProps fProps;
 };
 
 #endif