small tweaks to SkResourceCache::Key

src/core/SkResourceCache.h

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkResourceCache_DEFINED
 #define SkResourceCache_DEFINED
 
@@ skipping 22 matching lines @@
         // must call this after your private data has been written.
         // length must be a multiple of 4
         void init(size_t length);
 
         // This is only valid after having called init().
         uint32_t hash() const { return fHash; }
 
         bool operator==(const Key& other) const {
             const uint32_t* a = this->as32();
             const uint32_t* b = other.as32();
-            for (int i = 0; i < fCount32; ++i) {
+            for (int i = 0; i < fCount32; ++i) {  // (This checks fCount == other.fCount first.)
                 if (a[i] != b[i]) {
                     return false;
                 }
             }
             return true;
         }
 
     private:
-        // store fCount32 first, so we don't consider it in operator<
         int32_t  fCount32;  // 2 + user contents count32
         uint32_t fHash;
         /* uint32_t fContents32[] */
 
         const uint32_t* as32() const { return (const uint32_t*)this; }
-        const uint32_t* as32SkipCount() const { return this->as32() + 1; }
     };
 
     struct Rec {
         typedef SkResourceCache::Key Key;
 
         Rec() {}
         virtual ~Rec() {}
 
         uint32_t getHash() const { return this->getKey().hash(); }
 
@@ skipping 162 matching lines @@
 
     void init();    // called by constructors
 
 #ifdef SK_DEBUG
     void validate() const;
 #else
     void validate() const {}
 #endif
 };
 #endif