Move npot resizing out of GrContext and simplify GrContext texture functions.

include/gpu/GrResourceKey.h

 
 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrResourceKey_DEFINED
 #define GrResourceKey_DEFINED
@@ skipping 202 matching lines @@
 
     class Builder : public INHERITED::Builder {
     public:
         Builder(GrContentKey* key, Domain domain, int data32Count)
             : INHERITED::Builder(key, domain, data32Count) {}
 
         /** Used to build a key that wraps another key and adds additional data. */
         Builder(GrContentKey* key, const GrContentKey& innerKey, Domain domain,
                 int extraData32Cnt)
             : INHERITED::Builder(key, domain, Data32CntForInnerKey(innerKey) + extraData32Cnt) {
+            SkASSERT(&innerKey != key);
             // add the inner key to the end of the key so that op[] can be indexed normally.
             uint32_t* innerKeyData = &this->operator[](extraData32Cnt);
             const uint32_t* srcData = innerKey.data();
             (*innerKeyData++) = innerKey.domain();
             memcpy(innerKeyData, srcData, innerKey.dataSize());
         }
 
     private:
         static int Data32CntForInnerKey(const GrContentKey& innerKey) {
             // key data + domain
             return SkToInt((innerKey.dataSize() >> 2) + 1);
         }
     };
 };
 
 #endif