Mark existing image filter entry points that will be going away with Deprecated

src/gpu/GrLayerHoister.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrLayerCache.h"
 #include "GrLayerHoister.h"
 #include "GrRecordReplaceDraw.h"
@@ skipping 290 matching lines @@
     // This cache is transient, and is freed (along with all its contained
     // textures) when it goes out of scope.
     SkAutoTUnref<SkImageFilter::Cache> cache(SkImageFilter::Cache::Create(kDefaultCacheSize));
     SkImageFilter::Context filterContext(totMat, clipBounds, cache);
 
     SkImageFilter::DeviceProxy proxy(device);
     SkBitmap src;
     GrWrapTextureInBitmap(layer->texture(), layer->texture()->width(), layer->texture()->height(),
                           false, &src);
 
-    if (!layer->filter()->filterImage(&proxy, src, filterContext, &filteredBitmap, &offset)) {
+    if (!layer->filter()->filterImageDeprecated(&proxy, src, filterContext,
+                                                &filteredBitmap, &offset)) {
         // Filtering failed. Press on with the unfiltered version.
         return;
     }
 
     SkIRect newRect = SkIRect::MakeWH(filteredBitmap.width(), filteredBitmap.height());
     layer->setTexture(filteredBitmap.getTexture(), newRect, false);
     layer->setOffset(offset);
 }
 
 void GrLayerHoister::DrawLayers(GrContext* context, const SkTDArray<GrHoistedLayer>& layers) {
@@ skipping 62 matching lines @@
 #if !GR_CACHE_HOISTED_LAYERS
 
     // This code completely clears out the atlas. It is required when
     // caching is disabled so the atlas doesn't fill up and force more
     // free floating layers
     layerCache->purgeAll();
 #endif
 
     layerCache->end();
 }