gpu: Disconnect from host if gpu initialization failed.

content/gpu/gpu_child_thread.cc

Index: content/gpu/gpu_child_thread.cc
diff --git a/content/gpu/gpu_child_thread.cc b/content/gpu/gpu_child_thread.cc
index 715597db0e30489036eb3b67a4ec8ceea7a42cdd..7e2995ee5cc00e0db2b140a6de028031f9999c37 100644
--- a/content/gpu/gpu_child_thread.cc
+++ b/content/gpu/gpu_child_thread.cc
@@ -280,6 +280,7 @@ void GpuChildThread::CreateGpuService(
 
   if (dead_on_arrival_) {
     LOG(ERROR) << "Exiting GPU process due to errors during initialization";
+    gpu_service_.reset();
     base::MessageLoop::current()->QuitWhenIdle();
     return;
   }