Add the beginnings of a Chromoting Android app

remoting/protocol/connection_to_host.h

Index: remoting/protocol/connection_to_host.h
diff --git a/remoting/protocol/connection_to_host.h b/remoting/protocol/connection_to_host.h
index 01aff15fbdc4af7a31eb8265d925ade2b8e62d95..aadfa7bd1fe22482075d2c795f069c1e9fe92c34 100644
--- a/remoting/protocol/connection_to_host.h
+++ b/remoting/protocol/connection_to_host.h
@@ -51,6 +51,12 @@ class ConnectionToHost : public SignalStrategy::Listener,
                          public Session::EventHandler,
                          public base::NonThreadSafe {
  public:
+  // The UI implementations maintain corresponding definitions of this
+  // enumeration in webapp/client_session.js and
+  // android/java/res/values/strings.xml. The Android app also includes a
+  // constant in android/java/src/org/chromium/chromoting/jni/JniInterface.java
+  // that tracks the numeric value of the CONNECTED state. Be sure to update
+  // these locations to match this one if you make any changes to the ordering.
   enum State {
     INITIALIZING,
     CONNECTING,