Cleanup SurfaceVisibility code.

BUG=None
CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel

Review URL: https://codereview.chromium.org/1469863003

Cr-Commit-Position: refs/heads/master@{#362203}


CrOS-Libchrome-Original-Commit: eb453b4a2206bc5d022346464b701c5bedcaf681
diff --git a/mojo/gles2/command_buffer_client_impl.cc b/mojo/gles2/command_buffer_client_impl.cc
index b9aa502..6e3e2a6 100644
--- a/mojo/gles2/command_buffer_client_impl.cc
+++ b/mojo/gles2/command_buffer_client_impl.cc
@@ -369,11 +369,6 @@
   NOTIMPLEMENTED();
 }
 
-void CommandBufferClientImpl::SetSurfaceVisible(bool visible) {
-  // TODO(piman)
-  NOTIMPLEMENTED();
-}
-
 void CommandBufferClientImpl::DidLoseContext(int32_t lost_reason) {
   last_state_.error = gpu::error::kLostContext;
   last_state_.context_lost_reason =
diff --git a/mojo/gles2/command_buffer_client_impl.h b/mojo/gles2/command_buffer_client_impl.h
index c1e4231..92524f6 100644
--- a/mojo/gles2/command_buffer_client_impl.h
+++ b/mojo/gles2/command_buffer_client_impl.h
@@ -71,7 +71,6 @@
   void SignalSyncPoint(uint32 sync_point,
                        const base::Closure& callback) override;
   void SignalQuery(uint32 query, const base::Closure& callback) override;
-  void SetSurfaceVisible(bool visible) override;
   void SetLock(base::Lock*) override;
   bool IsGpuChannelLost() override;
   gpu::CommandBufferNamespace GetNamespaceID() const override;