Remove the HostEventStub aggregate interface.

remoting/host/event_executor.h

Index: remoting/host/event_executor.h
diff --git a/remoting/host/event_executor.h b/remoting/host/event_executor.h
index 9740b1383af5332651292645ecf33f730c21f32b..c660eb3601289c52c0adab639b78618b8faa178c 100644
--- a/remoting/host/event_executor.h
+++ b/remoting/host/event_executor.h
@@ -8,7 +8,7 @@
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "remoting/protocol/clipboard_stub.h"
-#include "remoting/protocol/host_event_stub.h"
+#include "remoting/protocol/input_stub.h"
 
 namespace base {
 class SingleThreadTaskRunner;
@@ -16,9 +16,8 @@ class SingleThreadTaskRunner;
 
 namespace remoting {
 
-class VideoFrameCapturer;
-
-class EventExecutor : public protocol::HostEventStub {
+class EventExecutor : public protocol::ClipboardStub,
+                      public protocol::InputStub {
  public:
   // Creates a default event executor for the current platform. This
   // object should do as much work as possible on |main_task_runner|,