Creating functions for uploading a mipmapped texture.

src/gpu/gl/GrGLGpu.h

Index: src/gpu/gl/GrGLGpu.h
diff --git a/src/gpu/gl/GrGLGpu.h b/src/gpu/gl/GrGLGpu.h
index 45337ddb3cae4ec793cbaeca6551f2db1e9c5e4a..1db850cef8902fa5b2cf69efe1d7c0fa8e49856c 100644
--- a/src/gpu/gl/GrGLGpu.h
+++ b/src/gpu/gl/GrGLGpu.h
@@ -128,6 +128,13 @@ private:
     GrTexture* onCreateCompressedTexture(const GrSurfaceDesc& desc,
                                          GrGpuResource::LifeCycle lifeCycle,
                                          const void* srcData) override;
+    GrTexture* onCreateMipmappedTexture(const GrSurfaceDesc& desc,
+                                        GrGpuResource::LifeCycle lifeCycle,
+                                        const SkMipMap& srcData) override;
+    GrTexture* onCreateCompressedMipmappedTexture(const GrSurfaceDesc& desc,
+                                                  GrGpuResource::LifeCycle lifeCycle,
+                                                  const SkMipMap& srcData) override;
+
     GrVertexBuffer* onCreateVertexBuffer(size_t size, bool dynamic) override;
     GrIndexBuffer* onCreateIndexBuffer(size_t size, bool dynamic) override;
     GrTexture* onWrapBackendTexture(const GrBackendTextureDesc&, GrWrapOwnership) override;
@@ -291,6 +298,14 @@ private:
                                  int left = 0, int top = 0,
                                  int width = -1, int height = -1);
 
+    // helper for onCreateMipmappedTexture
+    bool uploadMipmappedTexData(const GrSurfaceDesc& desc,
+                                const SkMipMap& data);
+
+    // helper for onCreateCompressedMipmappedTexture
+    bool uploadCompressedMipmappedTexData(const GrSurfaceDesc& desc,
+                                          const SkMipMap& data);
+
     bool createRenderTargetObjects(const GrSurfaceDesc&, GrGpuResource::LifeCycle lifeCycle,
                                    GrGLuint texID, GrGLRenderTarget::IDDesc*);