mojo: Fix double character inserts on Windows by removing a Linux hack.

ui/base/ime/input_method_auralinux.h

 // Copyright 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.
 
 #ifndef UI_BASE_IME_INPUT_METHOD_AURALINUX_H_
 #define UI_BASE_IME_INPUT_METHOD_AURALINUX_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "ui/base/ime/input_method_base.h"
 #include "ui/base/ime/linux/linux_input_method_context.h"
 
 namespace ui {
 
 // A ui::InputMethod implementation for Aura on Linux platforms. The
 // implementation details are separated to ui::LinuxInputMethodContext
 // interface.
-class InputMethodAuraLinux : public InputMethodBase,
-                             public LinuxInputMethodContextDelegate {
+class UI_BASE_EXPORT InputMethodAuraLinux
+    : public InputMethodBase,
+      public LinuxInputMethodContextDelegate {
  public:
   explicit InputMethodAuraLinux(internal::InputMethodDelegate* delegate);
   virtual ~InputMethodAuraLinux();
 
   // Overriden from InputMethod.
   virtual void Init(bool focused) OVERRIDE;
   virtual bool OnUntranslatedIMEMessage(const base::NativeEvent& event,
                                         NativeEventResult* result) OVERRIDE;
   virtual bool DispatchKeyEvent(const ui::KeyEvent& event) OVERRIDE;
   virtual void OnTextInputTypeChanged(const TextInputClient* client) OVERRIDE;
@@ skipping 45 matching lines @@
   // VKEY_PROCESSKEY event twice for a single key event.
   bool allowed_to_fire_vkey_process_key_;
   int vkey_processkey_flags_;
 
   DISALLOW_COPY_AND_ASSIGN(InputMethodAuraLinux);
 };
 
 }  // namespace ui
 
 #endif  // UI_BASE_IME_INPUT_METHOD_AURALINUX_H_