cc: ImageDecodes: Cleanup CanHandleImage

cc/tiles/software_image_decode_controller.h

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CC_TILES_SOFTWARE_IMAGE_DECODE_CONTROLLER_H_
 #define CC_TILES_SOFTWARE_IMAGE_DECODE_CONTROLLER_H_
 
 #include <stdint.h>
 
 #include <unordered_map>
@@ skipping 182 matching lines @@
   void SanityCheckState(int line, bool lock_acquired);
   void RefImage(const ImageKey& key);
   void RefAtRasterImage(const ImageKey& key);
   void UnrefAtRasterImage(const ImageKey& key);
 
   // These functions indicate whether the images can be handled and cached by
   // ImageDecodeController or whether they will fall through to Skia (with
   // exception of possibly prerolling them). Over time these should return
   // "false" in less cases, as the ImageDecodeController should start handling
   // more of them.
-  bool CanHandleImage(const ImageKey& key, const DrawImage& image);
-  bool CanHandleFilterQuality(SkFilterQuality filter_quality);
+  bool CanHandleImage(const ImageKey& key);
 
   std::unordered_map<ImageKey, scoped_refptr<ImageDecodeTask>, ImageKeyHash>
       pending_image_tasks_;
 
   // The members below this comment can only be accessed if the lock is held to
   // ensure that they are safe to access on multiple threads.
   base::Lock lock_;
 
   std::deque<AnnotatedDecodedImage> decoded_images_;
   std::unordered_map<ImageKey, int, ImageKeyHash> decoded_images_ref_counts_;
   std::deque<AnnotatedDecodedImage> at_raster_decoded_images_;
   std::unordered_map<ImageKey, int, ImageKeyHash>
       at_raster_decoded_images_ref_counts_;
   MemoryBudget locked_images_budget_;
 
   // Note that this is used for cases where the only thing we do is preroll the
   // image the first time we see it. This mimics the previous behavior and
   // should over time change as the compositor starts to handle more cases.
   std::unordered_set<uint32_t> prerolled_images_;
 };
 
 }  // namespace cc
 
 #endif  // CC_TILES_SOFTWARE_IMAGE_DECODE_CONTROLLER_H_