blink: Remove unused or rarely used methods from WebGraphicsContext3D

gpu/blink/webgraphicscontext3d_impl.h

Index: gpu/blink/webgraphicscontext3d_impl.h
diff --git a/gpu/blink/webgraphicscontext3d_impl.h b/gpu/blink/webgraphicscontext3d_impl.h
index ab5ab3a291a9e04dda7c4d552b67788736bda8b2..fdc62540f4055c66c101b64f2083d96fc4261fd6 100644
--- a/gpu/blink/webgraphicscontext3d_impl.h
+++ b/gpu/blink/webgraphicscontext3d_impl.h
@@ -461,22 +461,6 @@ class GPU_BLINK_EXPORT WebGraphicsContext3DImpl
 
   void synthesizeGLError(blink::WGC3Denum) override;
 
-  void* mapBufferSubDataCHROMIUM(blink::WGC3Denum target,
-                                 blink::WGC3Dintptr offset,
-                                 blink::WGC3Dsizeiptr size,
-                                 blink::WGC3Denum access) override;
-  void unmapBufferSubDataCHROMIUM(const void*) override;
-  void* mapTexSubImage2DCHROMIUM(blink::WGC3Denum target,
-                                 blink::WGC3Dint level,
-                                 blink::WGC3Dint xoffset,
-                                 blink::WGC3Dint yoffset,
-                                 blink::WGC3Dsizei width,
-                                 blink::WGC3Dsizei height,
-                                 blink::WGC3Denum format,
-                                 blink::WGC3Denum type,
-                                 blink::WGC3Denum access) override;
-  void unmapTexSubImage2DCHROMIUM(const void*) override;
-
   void setVisibilityCHROMIUM(bool visible) override;
 
   void discardFramebufferEXT(blink::WGC3Denum target,
@@ -514,12 +498,6 @@ class GPU_BLINK_EXPORT WebGraphicsContext3DImpl
   void setErrorMessageCallback(
       WebGraphicsContext3D::WebGraphicsErrorMessageCallback* callback) override;
 
-  void texImageIOSurface2DCHROMIUM(blink::WGC3Denum target,
-                                   blink::WGC3Dint width,
-                                   blink::WGC3Dint height,
-                                   blink::WGC3Duint ioSurfaceId,
-                                   blink::WGC3Duint plane) override;
-
   void texStorage2DEXT(blink::WGC3Denum target,
                        blink::WGC3Dint levels,
                        blink::WGC3Duint internalformat,
@@ -565,21 +543,12 @@ class GPU_BLINK_EXPORT WebGraphicsContext3DImpl
       blink::WGC3Dboolean unpack_premultiply_alpha,
       blink::WGC3Dboolean unpack_unmultiply_alpha) override;
 
-  void bindUniformLocationCHROMIUM(blink::WebGLId program,
-                                   blink::WGC3Dint location,
-                                   const blink::WGC3Dchar* uniform) override;
-
-  void shallowFlushCHROMIUM() override;
-  void shallowFinishCHROMIUM() override;
-
   void genMailboxCHROMIUM(blink::WGC3Dbyte* mailbox) override;
   void produceTextureCHROMIUM(blink::WGC3Denum target,
                               const blink::WGC3Dbyte* mailbox) override;
   void produceTextureDirectCHROMIUM(blink::WebGLId texture,
                                     blink::WGC3Denum target,
                                     const blink::WGC3Dbyte* mailbox) override;
-  void consumeTextureCHROMIUM(blink::WGC3Denum target,
-                              const blink::WGC3Dbyte* mailbox) override;
   blink::WebGLId createAndConsumeTextureCHROMIUM(
       blink::WGC3Denum target,
       const blink::WGC3Dbyte* mailbox) override;
@@ -600,13 +569,8 @@ class GPU_BLINK_EXPORT WebGraphicsContext3DImpl
   void uniformValuebufferCHROMIUM(blink::WGC3Dint location,
                                   blink::WGC3Denum target,
                                   blink::WGC3Denum subscription) override;
-  void traceBeginCHROMIUM(const blink::WGC3Dchar* category_name,
-                          const blink::WGC3Dchar* trace_name) override;
-  void traceEndCHROMIUM() override;
 
-  void insertEventMarkerEXT(const blink::WGC3Dchar* marker) override;
   void pushGroupMarkerEXT(const blink::WGC3Dchar* marker) override;
-  void popGroupMarkerEXT() override;
 
   // GL_OES_vertex_array_object
   blink::WebGLId createVertexArrayOES() override;
@@ -619,10 +583,6 @@ class GPU_BLINK_EXPORT WebGraphicsContext3DImpl
   void releaseTexImage2DCHROMIUM(blink::WGC3Denum target,
                                  blink::WGC3Dint image_id) override;
 
-  void* mapBufferCHROMIUM(blink::WGC3Denum target,
-                          blink::WGC3Denum access) override;
-  blink::WGC3Dboolean unmapBufferCHROMIUM(blink::WGC3Denum target) override;
-
   // GL_EXT_draw_buffers
   void drawBuffersEXT(blink::WGC3Dsizei n,
                       const blink::WGC3Denum* bufs) override;
@@ -937,8 +897,6 @@ class GPU_BLINK_EXPORT WebGraphicsContext3DImpl
                 blink::WGC3Dbitfield flags,
                 blink::WGC3Duint64 timeout) override;
 
-  blink::WGC3Denum getGraphicsResetStatusARB() override;
-
   // WebGraphicsContext3D implementation.
   ::gpu::gles2::GLES2Interface* getGLES2Interface() override;