Revert of Move instanced index buffer creation to flush time

src/gpu/GrResourceProvider.h

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrResourceProvider_DEFINED
 #define GrResourceProvider_DEFINED
 
 #include "GrTextureProvider.h"
 
-class GrIndexBuffer;
-class GrVertexBuffer;
-
 /**
  * An extension of the texture provider for arbitrary resource types. This class is intended for
  * use within the Gr code base, not by clients or extensions (e.g. third party GrProcessor
  * derivatives).
  */
 class GrResourceProvider : public GrTextureProvider {
 public:
 
-    GrResourceProvider(GrGpu* gpu, GrResourceCache* cache);
-
-    template <typename T> T* findAndRefTByUniqueKey(const GrUniqueKey& key) {
-        return static_cast<T*>(this->findAndRefResourceByUniqueKey(key));
-    }
-
-    /**
-     * Either finds and refs, or creates an index buffer for instanced drawing with a specific
-     * pattern if the index buffer is not found. If the return is non-null, the caller owns
-     * a ref on the returned GrIndexBuffer.
-     *
-     * @param pattern     the pattern of indices to repeat
-     * @param patternSize size in bytes of the pattern
-     * @param reps        number of times to repeat the pattern
-     * @param vertCount   number of vertices the pattern references
-     * @param key         Key to be assigned to the index buffer.
-     *
-     * @return The index buffer if successful, otherwise NULL.
-     */
-    const GrIndexBuffer* refOrCreateInstancedIndexBuffer(const uint16_t* pattern,
-                                                         int patternSize,
-                                                         int reps,
-                                                         int vertCount,
-                                                         const GrUniqueKey& key) {
-        if (GrIndexBuffer* buffer = this->findAndRefTByUniqueKey<GrIndexBuffer>(key)) {
-            return buffer;
-        }
-        return this->createInstancedIndexBuffer(pattern, patternSize, reps, vertCount, key);
-    }
-
-    /**
-     * Returns an index buffer that can be used to render quads.
-     * Six indices per quad: 0, 1, 2, 0, 2, 3, etc.
-     * The max number of quads can be queried using GrIndexBuffer::maxQuads().
-     * Draw with kTriangles_GrPrimitiveType
-     * @ return the quad index buffer
-     */
-    const GrIndexBuffer* refQuadIndexBuffer() {
-        if (GrIndexBuffer* buffer =
-            this->findAndRefTByUniqueKey<GrIndexBuffer>(fQuadIndexBufferKey)) {
-            return buffer;
-        }
-        return this->createQuadIndexBuffer();
-    }
-
+    GrResourceProvider(GrGpu* gpu, GrResourceCache* cache) : INHERITED(gpu, cache) {}
 
     using GrTextureProvider::assignUniqueKeyToResource;
     using GrTextureProvider::findAndRefResourceByUniqueKey;
     using GrTextureProvider::abandon;
 
-private:
-    const GrIndexBuffer* createInstancedIndexBuffer(const uint16_t* pattern,
-                                                    int patternSize,
-                                                    int reps,
-                                                    int vertCount,
-                                                    const GrUniqueKey& key);
-
-    const GrIndexBuffer* createQuadIndexBuffer();
-
-    GrUniqueKey fQuadIndexBufferKey;
-
     typedef GrTextureProvider INHERITED;
 };
 
 #endif