Add hideKeyboard API to chrome.experimental.input.

chrome/browser/extensions/extension_input_api.h

 // Copyright (c) 2011 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.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_EXTENSION_INPUT_API_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_INPUT_API_H_
 #pragma once
 
 #include "chrome/browser/extensions/extension_function.h"
 
@@ skipping 15 matching lines @@
 // synthetic event distribution code to this Function.
 class SendKeyboardEventInputFunction : public InputFunction {
  public:
   virtual bool RunImpl();
   DECLARE_EXTENSION_FUNCTION_NAME("experimental.input.sendKeyboardEvent");
 
  private:
   views::Widget* GetTopLevelWidget();
 };
 
+#if defined(TOUCH_UI)
+class HideKeyboardFunction : public AsyncExtensionFunction {
+ public:
+  virtual bool RunImpl();
+  DECLARE_EXTENSION_FUNCTION_NAME("experimental.input.hideKeyboard");
+};
+#endif
+
 #if defined(OS_CHROMEOS) && defined(TOUCH_UI)
 // Note that this experimental APIs are currently only available for
 // TOUCH_UI version of Chrome OS. Please also note that the version of Chrome
 // OS is always built with TOOLKIT_VIEWS.
 //
 // We may eventually support other platforms, especially non TOUCH_UI version
 // of Chrome OS.
 class SendHandwritingStrokeFunction : public SyncExtensionFunction {
  public:
   virtual bool RunImpl();
   DECLARE_EXTENSION_FUNCTION_NAME("experimental.input.sendHandwritingStroke");
 };
 
 class CancelHandwritingStrokesFunction : public SyncExtensionFunction {
  public:
   virtual bool RunImpl();
   DECLARE_EXTENSION_FUNCTION_NAME(
       "experimental.input.cancelHandwritingStrokes");
 };
 #endif
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_INPUT_API_H_