gpu: Use decoder state restoration for scoped_binders

gpu/command_buffer/service/gles2_cmd_decoder.cc

Index: gpu/command_buffer/service/gles2_cmd_decoder.cc
diff --git a/gpu/command_buffer/service/gles2_cmd_decoder.cc b/gpu/command_buffer/service/gles2_cmd_decoder.cc
index 6934e8bc58baacbe074b94a54cc01b6e8f939737..daea80c614cb2a422dd6fe34e07d093338a3b9cb 100644
--- a/gpu/command_buffer/service/gles2_cmd_decoder.cc
+++ b/gpu/command_buffer/service/gles2_cmd_decoder.cc
@@ -547,6 +547,9 @@ class GLES2DecoderImpl : public GLES2Decoder, public ErrorStateClient {
   void RestoreActiveTextureUnitBinding(unsigned int target) const override {
     state_.RestoreActiveTextureUnitBinding(target);
   }
+  void RestoreBufferBinding(unsigned int target) const override {
+    state_.RestoreBufferBinding(target);
+  }
   void RestoreBufferBindings() const override {
     state_.RestoreBufferBindings();
   }
@@ -557,6 +560,9 @@ class GLES2DecoderImpl : public GLES2Decoder, public ErrorStateClient {
   void RestoreTextureUnitBindings(unsigned unit) const override {
     state_.RestoreTextureUnitBindings(unit, NULL);
   }
+  void RestoreVertexAttribArray(unsigned index) override {
+    RestoreStateForAttrib(index, true);
+  }
   void RestoreFramebufferBindings() const override;
   void RestoreRenderbufferBindings() override;
   void RestoreTextureState(unsigned service_id) const override;