PPAPI: Purposely leak ProxyLock, fix shutdown race

content/renderer/pepper/host_globals.h

Index: content/renderer/pepper/host_globals.h
diff --git a/content/renderer/pepper/host_globals.h b/content/renderer/pepper/host_globals.h
index 2f67b9e23603bd3d80d111deedd3568631d044bb..761fa915743eb42242937acc19edc28306d5d553 100644
--- a/content/renderer/pepper/host_globals.h
+++ b/content/renderer/pepper/host_globals.h
@@ -20,7 +20,6 @@ class PluginModule;
 class HostGlobals : public ppapi::PpapiGlobals {
  public:
   HostGlobals();
-  explicit HostGlobals(ppapi::PpapiGlobals::PerThreadForTest);
   virtual ~HostGlobals();
 
   // Getter for the global singleton. Generally, you should use
@@ -43,7 +42,6 @@ class HostGlobals : public ppapi::PpapiGlobals {
   virtual PP_Module GetModuleForInstance(PP_Instance instance) OVERRIDE;
   virtual std::string GetCmdLine() OVERRIDE;
   virtual void PreCacheFontForFlash(const void* logfontw) OVERRIDE;
-  virtual base::Lock* GetProxyLock() OVERRIDE;
   virtual void LogWithSource(PP_Instance instance,
                              PP_LogLevel level,
                              const std::string& source,