linux-aura: Supports Compose key with XIM.

ui/base/ime/input_method_auralinux.cc

 // 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.
 
 #include "ui/base/ime/input_method_auralinux.h"
 
 #include "base/environment.h"
 #include "ui/base/ime/linux/linux_input_method_context_factory.h"
 #include "ui/base/ime/text_input_client.h"
 #include "ui/events/event.h"
@@ skipping 38 matching lines @@
 bool InputMethodAuraLinux::DispatchKeyEvent(const ui::KeyEvent& event) {
   DCHECK(event.type() == ET_KEY_PRESSED || event.type() == ET_KEY_RELEASED);
   DCHECK(system_toplevel_window_focused());
 
   // If no text input client, do nothing.
   if (!GetTextInputClient())
     return DispatchKeyEventPostIME(event);
 
   // Let an IME handle the key event first.
   if (input_method_context_->DispatchKeyEvent(event)) {
-    if (event.type() == ET_KEY_PRESSED) {
+    if (event.type() == ET_KEY_PRESSED &&
+        (event.flags() & ui::EF_IME_FABRICATED_KEY) == 0) {
       const ui::KeyEvent fabricated_event(ET_KEY_PRESSED,
                                           VKEY_PROCESSKEY,
                                           event.flags(),
                                           false);  // is_char
       DispatchKeyEventPostIME(fabricated_event);
     }
     return true;
   }
 
   // Otherwise, insert the character.
@@ skipping 76 matching lines @@
     TextInputClient* focused_before,
     TextInputClient* focused) {
   input_method_context_->Reset();
   input_method_context_->OnTextInputTypeChanged(
       focused ? focused->GetTextInputType() : TEXT_INPUT_TYPE_NONE);
 
   InputMethodBase::OnDidChangeFocusedClient(focused_before, focused);
 }
 
 }  // namespace ui