Use precompiled headers for most large projects.

webkit/plugins/ppapi/ppapi_plugin_instance.cc

Index: webkit/plugins/ppapi/ppapi_plugin_instance.cc
diff --git a/webkit/plugins/ppapi/ppapi_plugin_instance.cc b/webkit/plugins/ppapi/ppapi_plugin_instance.cc
index c8359f9e9c11bd4f471cc2d1cdb22deda86cf1c6..a896e06900bd0e3c4064124219890c6298614cb4 100644
--- a/webkit/plugins/ppapi/ppapi_plugin_instance.cc
+++ b/webkit/plugins/ppapi/ppapi_plugin_instance.cc
@@ -199,12 +199,12 @@ void RectToPPRect(const gfx::Rect& input, PP_Rect* output) {
 PluginInstance* PluginInstance::Create1_0(PluginDelegate* delegate,
                                           PluginModule* module,
                                           const void* ppp_instance_if_1_0) {
-  const PPP_Instance_1_0* interface =
+  const PPP_Instance_1_0* instance =
       static_cast<const PPP_Instance_1_0*>(ppp_instance_if_1_0);
   return new PluginInstance(
       delegate,
       module,
-      new ::ppapi::PPP_Instance_Combined(*interface));
+      new ::ppapi::PPP_Instance_Combined(*instance));
 }
 
 PluginInstance::PluginInstance(