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

content/public/common/child_process_host_delegate.h

Index: content/public/common/child_process_host_delegate.h
diff --git a/content/public/common/child_process_host_delegate.h b/content/public/common/child_process_host_delegate.h
index 4418e611a0035dc7793e7415a0cdc95b8c4ef712..9fe7ddcd5b4babdf070013dec9fca47797c9e267 100644
--- a/content/public/common/child_process_host_delegate.h
+++ b/content/public/common/child_process_host_delegate.h
@@ -9,12 +9,12 @@
 #include <string>
 
 #include "content/common/content_export.h"
-#include "ipc/ipc_channel.h"
+#include "ipc/ipc_listener.h"
 
 namespace content {
 
 // Interface that all users of ChildProcessHost need to provide.
-class ChildProcessHostDelegate : public IPC::Channel::Listener {
+class ChildProcessHostDelegate : public IPC::Listener {
  public:
   virtual ~ChildProcessHostDelegate() {}