Add two functions for handwriting: SendHandwritingStrokes and CancelHandwriting.

chrome/browser/chromeos/cros/input_method_library.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_CHROMEOS_CROS_INPUT_METHOD_LIBRARY_H_
 #define CHROME_BROWSER_CHROMEOS_CROS_INPUT_METHOD_LIBRARY_H_
 #pragma once
 
 #include <string>
 #include <utility>
@@ skipping 103 matching lines @@
   virtual void StopInputMethodDaemon() = 0;
 
   // Controls whether the IME process is started when preload engines are
   // specificed, or defered until a non-default method is activated.
   virtual void SetDeferImeStartup(bool defer) = 0;
 
   // Controls whether the IME process is stopped when all non-default preload
   // engines are removed.
   virtual void SetEnableAutoImeShutdown(bool enable) = 0;
 
+  // Sends a handwriting stroke to libcros. See chromeos::SendHandwritingStroke
+  // for details.
+  virtual void SendHandwritingStroke(const HandwritingStroke& stroke) = 0;
+
+  // Clears last N handwriting strokes in libcros. See
+  // chromeos::CancelHandwriting for details.
+  virtual void CancelHandwriting(int n_strokes) = 0;
 
   virtual const InputMethodDescriptor& previous_input_method() const = 0;
   virtual const InputMethodDescriptor& current_input_method() const = 0;
 
   virtual const ImePropertyList& current_ime_properties() const = 0;
 
   // Factory function, creates a new instance and returns ownership.
   // For normal usage, access the singleton via CrosLibrary::Get().
   static InputMethodLibrary* GetImpl(bool stub);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_CROS_INPUT_METHOD_LIBRARY_H_