Fixes the issue that CharacterComposer always update the composition text (CrOS).

ui/base/ime/input_method_chromeos.cc

Index: ui/base/ime/input_method_chromeos.cc
diff --git a/ui/base/ime/input_method_chromeos.cc b/ui/base/ime/input_method_chromeos.cc
index e12697ea3dd805a84aa2eb4afecac14ef0772598..79062289adf45b360ac64cd74fba03b210f32ec0 100644
--- a/ui/base/ime/input_method_chromeos.cc
+++ b/ui/base/ime/input_method_chromeos.cc
@@ -553,19 +553,21 @@ void InputMethodChromeOS::DeleteSurroundingText(int32 offset, uint32 length) {
 }
 
 bool InputMethodChromeOS::ExecuteCharacterComposer(const ui::KeyEvent& event) {
-  bool consumed = character_composer_.FilterKeyPress(event);
+  if (!character_composer_.FilterKeyPress(event))
+    return false;
 
+  // CharacterComposer consumed the key event.  Update the composition text.
   chromeos::IBusText preedit;
   preedit.set_text(
       base::UTF16ToUTF8(character_composer_.preedit_string()));
   UpdatePreeditText(preedit, preedit.text().size(),
                     !preedit.text().empty());
-   std::string commit_text =
+  std::string commit_text =
       base::UTF16ToUTF8(character_composer_.composed_character());
   if (!commit_text.empty()) {
     CommitText(commit_text);
   }
-  return consumed;
+  return true;
 }
 
 void InputMethodChromeOS::ExtractCompositionText(