gpu: Optimize in-process idle task scheduling

gpu/command_buffer/service/in_process_command_buffer.cc

Index: gpu/command_buffer/service/in_process_command_buffer.cc
diff --git a/gpu/command_buffer/service/in_process_command_buffer.cc b/gpu/command_buffer/service/in_process_command_buffer.cc
index c67107392638a82d6f75c1030ab2fbf61d11f001..43f20516608475f0edf1e179a8afaafb9e4b9654 100644
--- a/gpu/command_buffer/service/in_process_command_buffer.cc
+++ b/gpu/command_buffer/service/in_process_command_buffer.cc
@@ -101,8 +101,9 @@ void GpuInProcessThread::ScheduleTask(const base::Closure& task) {
 }
 
 void GpuInProcessThread::ScheduleIdleWork(const base::Closure& callback) {
+  // Match delay with GpuCommandBufferStub.
   message_loop()->PostDelayedTask(
-      FROM_HERE, callback, base::TimeDelta::FromMilliseconds(5));
+      FROM_HERE, callback, base::TimeDelta::FromMilliseconds(2));
 }
 
 scoped_refptr<gles2::ShaderTranslatorCache>