cc: Rename ImageDecodeController to ImageDecodeCache.

cc/tiles/image_decode_cache.h

Index: cc/tiles/image_decode_cache.h
diff --git a/cc/tiles/image_decode_controller.h b/cc/tiles/image_decode_cache.h
similarity index 87%
rename from cc/tiles/image_decode_controller.h
rename to cc/tiles/image_decode_cache.h
index 10e93988ef9cd14fe351280bcfd2e60b5fd2550d..d20ed37fad3a8eabada8cfc41242aeb89ecccaac 100644
--- a/cc/tiles/image_decode_controller.h
+++ b/cc/tiles/image_decode_cache.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef CC_TILES_IMAGE_DECODE_CONTROLLER_H_
-#define CC_TILES_IMAGE_DECODE_CONTROLLER_H_
+#ifndef CC_TILES_IMAGE_DECODE_CACHE_H_
+#define CC_TILES_IMAGE_DECODE_CACHE_H_
 
 #include "base/memory/ref_counted.h"
 #include "cc/playback/decoded_draw_image.h"
@@ -14,11 +14,11 @@ namespace cc {
 
 class TileTask;
 
-// ImageDecodeController is responsible for generating decode tasks, decoding
+// ImageDecodeCache is responsible for generating decode tasks, decoding
 // images, storing images in cache, and being able to return the decoded images
 // when requested.
 
-// ImageDecodeController is responsible for the following things:
+// ImageDecodeCache is responsible for the following things:
 // 1. Given a DrawImage, it can return an TileTask which when run will
 //    decode and cache the resulting image. If the image does not need a task to
 //    be decoded, then nullptr will be returned. The return value of the
@@ -32,7 +32,7 @@ class TileTask;
 //    and it needs to be scaled/decoded, then this decode will happen as part of
 //    getting the image. As such, this should only be accessed from a raster
 //    thread.
-class CC_EXPORT ImageDecodeController {
+class CC_EXPORT ImageDecodeCache {
  public:
   // This information should be used strictly in tracing, UMA, and any other
   // reporting systems.
@@ -50,7 +50,7 @@ class CC_EXPORT ImageDecodeController {
     const TilePriority::PriorityBin requesting_tile_bin;
   };
 
-  virtual ~ImageDecodeController() {}
+  virtual ~ImageDecodeCache() {}
 
   // Fill in an TileTask which will decode the given image when run. In
   // case the image is already cached, fills in nullptr. Returns true if the
@@ -76,11 +76,11 @@ class CC_EXPORT ImageDecodeController {
   virtual void DrawWithImageFinished(const DrawImage& image,
                                      const DecodedDrawImage& decoded_image) = 0;
 
-  // This function informs the controller that now is a good time to clean up
+  // This function informs the cache that now is a good time to clean up
   // memory. This is called periodically from the compositor thread.
   virtual void ReduceCacheUsage() = 0;
 
-  // This function informs the controller that we are hidden and should not be
+  // This function informs the cache that we are hidden and should not be
   // retaining cached resources longer than needed.
   virtual void SetShouldAggressivelyFreeResources(
       bool aggressively_free_resources) = 0;
@@ -88,4 +88,4 @@ class CC_EXPORT ImageDecodeController {
 
 }  // namespace cc
 
-#endif  // CC_TILES_IMAGE_DECODE_CONTROLLER_H_
+#endif  // CC_TILES_IMAGE_DECODE_CACHE_H_