store map ptr in GrGeometryBuffer base class

src/gpu/gl/GrGLVertexBuffer.h

Index: src/gpu/gl/GrGLVertexBuffer.h
diff --git a/src/gpu/gl/GrGLVertexBuffer.h b/src/gpu/gl/GrGLVertexBuffer.h
index ddab8299a7b895250d6dcc822166b698c2153e4c..db413ac9909c25acdf3a2be853e16e0b3f4fbb7f 100644
--- a/src/gpu/gl/GrGLVertexBuffer.h
+++ b/src/gpu/gl/GrGLVertexBuffer.h
@@ -31,19 +31,15 @@ public:
         }
     }
 
-    // overrides of GrVertexBuffer
-    virtual void* map() SK_OVERRIDE;
-    virtual void* mapPtr() const SK_OVERRIDE;
-    virtual void unmap() SK_OVERRIDE;
-    virtual bool isMapped() const SK_OVERRIDE;
-    virtual bool updateData(const void* src, size_t srcSizeInBytes);
-
 protected:
-    // overrides of GrResource
     virtual void onAbandon() SK_OVERRIDE;
     virtual void onRelease() SK_OVERRIDE;
 
 private:
+    virtual void* onMap() SK_OVERRIDE;
+    virtual void onUnmap() SK_OVERRIDE;
+    virtual bool onUpdateData(const void* src, size_t srcSizeInBytes) SK_OVERRIDE;
+
     GrGpuGL* getGpuGL() const {
         SkASSERT(!this->wasDestroyed());
         return (GrGpuGL*)(this->getGpu());