Adding hooks to add the keyboard on screen and be able to dismiss it.

remoting/ios/client_gestures.mm

 // Copyright 2017 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #if !defined(__has_feature) || !__has_feature(objc_arc)
 #error "This file requires ARC support."
 #endif
 
 #import "remoting/ios/client_gestures.h"
+
+#import "remoting/ios/key_input.h"
 #import "remoting/ios/session/remoting_client.h"
 
+#include "base/logging.h"
 #include "remoting/client/gesture_interpreter.h"
 
 @implementation ClientGestures
 
 - (instancetype)initWithView:(UIView*)view client:(RemotingClient*)client {
   _view = view;
   _client = client;
 
   _inputScheme = HostInputSchemeTouch;
 
@@ skipping 327 matching lines @@
       otherGestureRecognizer == _edgeGesture) {
     return YES;
   }
   // TODO(nicholss): If we return NO here, it dismisses the other reconizers.
   // As we add more types of reconizers, they need to be accounted for in the
   // above logic.
   return NO;
 }
 
 @end