gpu: Don't switch context for SignalSyncPoint

content/common/gpu/gpu_command_buffer_stub.cc

Index: content/common/gpu/gpu_command_buffer_stub.cc
diff --git a/content/common/gpu/gpu_command_buffer_stub.cc b/content/common/gpu/gpu_command_buffer_stub.cc
index f7daa56f27419bdf2064f013b9052753fcbc7371..6163c16375ad3ff6aa7fa4f7619b59207bb2a9a3 100644
--- a/content/common/gpu/gpu_command_buffer_stub.cc
+++ b/content/common/gpu/gpu_command_buffer_stub.cc
@@ -229,7 +229,8 @@ bool GpuCommandBufferStub::OnMessageReceived(const IPC::Message& message) {
   if (decoder_.get() && message.type() != GpuCommandBufferMsg_Echo::ID &&
       message.type() != GpuCommandBufferMsg_WaitForTokenInRange::ID &&
       message.type() != GpuCommandBufferMsg_WaitForGetOffsetInRange::ID &&
-      message.type() != GpuCommandBufferMsg_RetireSyncPoint::ID) {
+      message.type() != GpuCommandBufferMsg_RetireSyncPoint::ID &&
+      message.type() != GpuCommandBufferMsg_SignalSyncPoint::ID) {
     if (!MakeCurrent())
       return false;
     have_context = true;