gpu: Support other buffer targets for ScopedBufferBinder

gpu/command_buffer/service/context_state.h

Index: gpu/command_buffer/service/context_state.h
diff --git a/gpu/command_buffer/service/context_state.h b/gpu/command_buffer/service/context_state.h
index 050fc0ce0d9641fd19a763a6409fe8d3c3f69dd1..056dd4f6ce9f44c8f66d009fa91713f078e26df7 100644
--- a/gpu/command_buffer/service/context_state.h
+++ b/gpu/command_buffer/service/context_state.h
@@ -217,7 +217,6 @@ struct GPU_EXPORT ContextState {
   void RestoreVertexAttribArrays(
       const scoped_refptr<VertexAttribManager> attrib_manager) const;
   void RestoreVertexAttribs() const;
-  void RestoreBufferBinding(unsigned int target) const;
   void RestoreBufferBindings() const;
   void RestoreGlobalState(const ContextState* prev_state) const;
   void RestoreProgramSettings(const ContextState* prev_state,
@@ -310,6 +309,13 @@ struct GPU_EXPORT ContextState {
   PixelStoreParams GetPackParams();
   PixelStoreParams GetUnpackParams(Dimension dimension);
 
+  // If a buffer object is bound to PIXEL_PACK_BUFFER, set all pack parameters
+  // user values; otherwise, set them to 0.
+  void UpdatePackParameters() const;
+  // If a buffer object is bound to PIXEL_UNPACK_BUFFER, set all unpack
+  // parameters user values; otherwise, set them to 0.
+  void UpdateUnpackParameters() const;
+
   void EnableDisableFramebufferSRGB(bool enable);
 
   #include "gpu/command_buffer/service/context_state_autogen.h"
@@ -370,13 +376,6 @@ struct GPU_EXPORT ContextState {
  private:
   void EnableDisable(GLenum pname, bool enable) const;
 
-  // If a buffer object is bound to PIXEL_PACK_BUFFER, set all pack parameters
-  // user values; otherwise, set them to 0.
-  void UpdatePackParameters() const;
-  // If a buffer object is bound to PIXEL_UNPACK_BUFFER, set all unpack
-  // parameters user values; otherwise, set them to 0.
-  void UpdateUnpackParameters() const;
-
   void InitStateManual(const ContextState* prev_state) const;
 
   // EnableDisableFramebufferSRGB is called at very high frequency. Cache the