Refactor GrBufferAllocPools to use resource cache

src/gpu/GrResourceProvider.h

Index: src/gpu/GrResourceProvider.h
diff --git a/src/gpu/GrResourceProvider.h b/src/gpu/GrResourceProvider.h
index 0d80cdd2a086f45941aba8c838ef9d7cc49de8fe..bcfc05a51d3d87e8cdd2b0aebf51fad03054245a 100644
--- a/src/gpu/GrResourceProvider.h
+++ b/src/gpu/GrResourceProvider.h
@@ -71,6 +71,15 @@ public:
     using GrTextureProvider::findAndRefResourceByUniqueKey;
     using GrTextureProvider::abandon;
 
+    GrIndexBuffer* refScratchIndexBuffer(size_t size, bool dynamic, 

[bsalomon, 2015/05/13 14:41:36]

Do we need a scratch match param at all? When would we use an exact match for
buffers? For textures I was hoping to delete the enum entirely as well as the
notion of scratch.

createTexture() {
    // might be a scratch might be new, who can say!
}

refApproxTexture() {
}

[robertphillips, 2015/05/13 14:44:55]

Well - the static, instanced geometry index buffers might as well be exactly
sized.

+                                         ScratchMatch match, bool calledDuringFlush);
+    GrVertexBuffer* refScratchVertBuffer(size_t size, bool dynamic, 
+                                         ScratchMatch match, bool calledDuringFlush);
+
+protected:
+    GrIndexBuffer* internalRefIndexBuffer(size_t size, bool dynamic, uint32_t flags);
+    GrVertexBuffer* internalRefVertexBuffer(size_t size, bool dynamic, uint32_t flags);
+
 private:
     const GrIndexBuffer* createInstancedIndexBuffer(const uint16_t* pattern,
                                                     int patternSize,