cc: ImageDecodes: Cleanup CanHandleImage

We've reduced CanHandleImage to the point where it only can't handle
medium quality images. This is just a cleanup patch to make that obvious

R=enne, ericrk
CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel

Review URL: https://codereview.chromium.org/1760053002

Cr-Commit-Position: refs/heads/master@{#378928}
diff --git a/cc/tiles/software_image_decode_controller.h b/cc/tiles/software_image_decode_controller.h
index 0367db7..72e0bf6 100644
--- a/cc/tiles/software_image_decode_controller.h
+++ b/cc/tiles/software_image_decode_controller.h
@@ -200,8 +200,7 @@
   // 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_;