Add a simpler key type for scratch resource keys.

src/gpu/GrStencilAndCoverTextContext.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrStencilAndCoverTextContext.h"
 #include "GrBitmapTextContext.h"
 #include "GrDrawTarget.h"
@@ skipping 194 matching lines @@
                                   const SkTypeface* typeface,
                                   const SkDescriptor* desc,
                                   const SkStrokeRec& stroke) {
     static const GrCacheID::Domain gGlyphsDomain = GrCacheID::GenerateDomain();
 
     GrCacheID::Key key;
     uint64_t* keyData = key.fData64;
     keyData[0] = desc ? desc->getChecksum() : 0;
     keyData[0] = (keyData[0] << 32) | (typeface ? typeface->uniqueID() : 0);
     keyData[1] = GrPath::ComputeStrokeKey(stroke);
-    GrResourceKey resourceKey = GrResourceKey(GrCacheID(gGlyphsDomain, key),
-                                              GrPathRange::resourceType(), 0);
+    GrResourceKey resourceKey = GrResourceKey(GrCacheID(gGlyphsDomain, key), 0);
 
     SkAutoTUnref<GrPathRange> glyphs(
         static_cast<GrPathRange*>(ctx->findAndRefCachedResource(resourceKey)));
     if (NULL == glyphs || (NULL != desc && !glyphs->isEqualTo(*desc))) {
         glyphs.reset(ctx->getGpu()->pathRendering()->createGlyphs(typeface, desc, stroke));
         ctx->addResourceToCache(resourceKey, glyphs);
     }
 
     return glyphs.detach();
 }
@@ skipping 224 matching lines @@
 
     SkGlyphCache::AttachCache(fGlyphCache);
     fGlyphCache = NULL;
 
     fDrawState.stencil()->setDisabled();
     fStateRestore.set(NULL);
     fViewMatrix = fContextInitialMatrix;
     GrTextContext::finish();
 }