Rename IPC Sender and Listener in ppapi, content/public, and content/renderer

content/public/browser/browser_message_filter.cc

Index: content/public/browser/browser_message_filter.cc
diff --git a/content/public/browser/browser_message_filter.cc b/content/public/browser/browser_message_filter.cc
index 6e5b59859898b770734d8f29e430935e7317c404..51eab111835f2d130df49410edf50ba6242c5cf2 100644
--- a/content/public/browser/browser_message_filter.cc
+++ b/content/public/browser/browser_message_filter.cc
@@ -98,7 +98,7 @@ base::TaskRunner* BrowserMessageFilter::OverrideTaskRunnerForMessage(
 }
 
 bool BrowserMessageFilter::CheckCanDispatchOnUI(const IPC::Message& message,
-                                                IPC::Message::Sender* sender) {
+                                                IPC::Sender* sender) {
 #if defined(OS_WIN) && !defined(USE_AURA)
   // On Windows there's a potential deadlock with sync messsages going in
   // a circle from browser -> plugin -> renderer -> browser.