SkTDynamicHash: remove need for Equals(const T&, const Key&) param.

src/core/SkScaledImageCache.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkScaledImageCache.h"
 #include "SkMipMap.h"
 #include "SkOnce.h"
@@ skipping 126 matching lines @@
 
 namespace { // can't use static functions w/ template parameters
 const SkScaledImageCache::Key& key_from_rec(const SkScaledImageCache::Rec& rec) {
     return rec.fKey;
 }
 
 uint32_t hash_from_key(const SkScaledImageCache::Key& key) {
     return key.fHash;
 }
 
-bool eq_rec_key(const SkScaledImageCache::Rec& rec, const SkScaledImageCache::Key& key) {
-    return rec.fKey == key;
-}
-}
+}  // namespace
 
 class SkScaledImageCache::Hash : public SkTDynamicHash<SkScaledImageCache::Rec,
                                                        SkScaledImageCache::Key,
                                                        key_from_rec,
-                                                       hash_from_key,
-                                                       eq_rec_key> {};
+                                                       hash_from_key> {};
+
 
 ///////////////////////////////////////////////////////////////////////////////
 
 // experimental hash to speed things up
 #define USE_HASH
 
 #if !defined(USE_HASH)
 static inline SkScaledImageCache::Rec* find_rec_in_list(
         SkScaledImageCache::Rec* head, const Key & key) {
     SkScaledImageCache::Rec* rec = head;
@@ skipping 622 matching lines @@
     return SkScaledImageCache::GetBytesUsed();
 }
 
 size_t SkGraphics::GetImageCacheByteLimit() {
     return SkScaledImageCache::GetByteLimit();
 }
 
 size_t SkGraphics::SetImageCacheByteLimit(size_t newLimit) {
     return SkScaledImageCache::SetByteLimit(newLimit);
 }