remoting/host: Rename Capturer to VideoFrameCapturer.

remoting/host/chromoting_host.h

Index: remoting/host/chromoting_host.h
diff --git a/remoting/host/chromoting_host.h b/remoting/host/chromoting_host.h
index 1d4cadc0128cc0b15475138c2bc4941e5457d72c..965213b1f49e58b998c2bf4525e1daa17f818263 100644
--- a/remoting/host/chromoting_host.h
+++ b/remoting/host/chromoting_host.h
@@ -13,7 +13,6 @@
 #include "base/threading/thread.h"
 #include "net/base/backoff_entry.h"
 #include "remoting/base/encoder.h"
-#include "remoting/host/capturer.h"
 #include "remoting/host/client_session.h"
 #include "remoting/host/desktop_environment.h"
 #include "remoting/host/host_key_pair.h"
@@ -32,7 +31,6 @@ class SessionConfig;
 class CandidateSessionConfig;
 }  // namespace protocol
 
-class Capturer;
 class ChromotingHostContext;
 class DesktopEnvironment;
 class Encoder;
@@ -48,7 +46,7 @@ class ScreenRecorder;
 //
 // 2. We listen for incoming connection using libjingle. We will create
 //    a ConnectionToClient object that wraps around linjingle for transport.
-//    A ScreenRecorder is created with an Encoder and a Capturer.
+//    A ScreenRecorder is created with an Encoder and a VideoFrameCapturer.
 //    A ConnectionToClient is added to the ScreenRecorder for transporting
 //    the screen captures. An InputStub is created and registered with the
 //    ConnectionToClient to receive mouse / keyboard events from the remote