Use IPC::Sender and IPC::Listener in content.

content/common/gpu/image_transport_surface.h

Index: content/common/gpu/image_transport_surface.h
diff --git a/content/common/gpu/image_transport_surface.h b/content/common/gpu/image_transport_surface.h
index 936f40d673b507a9d7510003a40a0a2486d9bc0f..6a6267e5d44983ff4738c890f8287b05f932e2dc 100644
--- a/content/common/gpu/image_transport_surface.h
+++ b/content/common/gpu/image_transport_surface.h
@@ -86,7 +86,7 @@ class ImageTransportSurface {
   DISALLOW_COPY_AND_ASSIGN(ImageTransportSurface);
 };
 
-class ImageTransportHelper : public IPC::Channel::Listener {
+class ImageTransportHelper : public IPC::Listener {
  public:
   // Takes weak pointers to objects that outlive the helper.
   ImageTransportHelper(ImageTransportSurface* surface,
@@ -98,7 +98,7 @@ class ImageTransportHelper : public IPC::Channel::Listener {
   bool Initialize();
   void Destroy();
 
-  // IPC::Channel::Listener implementation:
+  // IPC::Listener implementation:
   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
 
   // Helper send functions. Caller fills in the surface specific params