Add a --enable-gesture-typing flag. Currently this flag does nothing.

ui/keyboard/keyboard_util.cc

 // Copyright (c) 2013 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.
 
 #include "ui/keyboard/keyboard_util.h"
 
 #include <string>
 
 #include "base/command_line.h"
 #include "base/lazy_instance.h"
@@ skipping 136 matching lines @@
           switches::kEnableInputView))
     return true;
   if (base::CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kDisableInputView))
     return false;
   // Default value if no command line flags specified.
   return true;
 }
 
 bool IsExperimentalInputViewEnabled() {
-  if (base::CommandLine::ForCurrentProcess()->HasSwitch(
-          switches::kEnableExperimentalInputViewFeatures)) {
-    return true;
-  }
-  return false;
+  return base::CommandLine::ForCurrentProcess()->HasSwitch(
+          switches::kEnableExperimentalInputViewFeatures);
+}
+
+bool IsGestureTypingEnabled() {
+  return base::CommandLine::ForCurrentProcess()->HasSwitch(
+          switches::kEnableGestureTyping);
 }
 
 bool InsertText(const base::string16& text) {
   keyboard::KeyboardController* controller = KeyboardController::GetInstance();
   if (!controller)
     return false;
 
   ui::InputMethod* input_method = controller->proxy()->GetInputMethod();
   if (!input_method)
     return false;
@@ skipping 213 matching lines @@
 }
 
 void LogKeyboardControlEvent(KeyboardControlEvent event) {
   UMA_HISTOGRAM_ENUMERATION(
       "VirtualKeyboard.KeyboardControlEvent",
       event,
       keyboard::KEYBOARD_CONTROL_MAX);
 }
 
 }  // namespace keyboard