Redesigned CommandBuffer and NPDevice3D interfaces

gpu/command_buffer/client/cmd_buffer_helper.h

Index: gpu/command_buffer/client/cmd_buffer_helper.h
===================================================================
--- gpu/command_buffer/client/cmd_buffer_helper.h	(revision 37414)
+++ gpu/command_buffer/client/cmd_buffer_helper.h	(working copy)
@@ -146,7 +146,7 @@
     return *reinterpret_cast<T*>(data);
   }
 
-  parse_error::ParseError GetParseError();
+  parse_error::ParseError GetError();
 
   // Common Commands
   void Noop(uint32 skip_count) {
@@ -170,6 +170,9 @@
     return (get_ - put_ - 1 + entry_count_) % entry_count_;
   }
 
+  // Synchronize with current service state.
+  void SynchronizeState(CommandBuffer::State state);
+
   CommandBuffer* command_buffer_;
   Buffer ring_buffer_;
   CommandBufferEntry *entries_;