| Index: third_party/WebKit/Source/platform/graphics/gpu/DrawingBufferTestHelpers.h | 
| diff --git a/third_party/WebKit/Source/platform/graphics/gpu/DrawingBufferTestHelpers.h b/third_party/WebKit/Source/platform/graphics/gpu/DrawingBufferTestHelpers.h | 
| index 8ee8c7beb228ae9f03ab58cb1585c862520e5a24..3fb106ce0578a997e1f6dcc7356697cf5e7a7215 100644 | 
| --- a/third_party/WebKit/Source/platform/graphics/gpu/DrawingBufferTestHelpers.h | 
| +++ b/third_party/WebKit/Source/platform/graphics/gpu/DrawingBufferTestHelpers.h | 
| @@ -80,6 +80,7 @@ class WebGraphicsContext3DProviderForTests | 
| void setLostContextCallback(const base::Closure&) {} | 
| void setErrorMessageCallback( | 
| const base::Callback<void(const char*, int32_t id)>&) {} | 
| +  void signalQuery(uint32_t, const base::Closure&) override {} | 
|  | 
| private: | 
| std::unique_ptr<gpu::gles2::GLES2Interface> m_gl; | 
|  |