Integrate the new input method API for Views into Chromium.

chrome/browser/chromeos/login/screen_locker.cc

Index: chrome/browser/chromeos/login/screen_locker.cc
diff --git a/chrome/browser/chromeos/login/screen_locker.cc b/chrome/browser/chromeos/login/screen_locker.cc
index 9c0530e89a68d068db516b06bb2e267c3869a1ea..c36bdd87a7990e0a62f9fb69bdbfeb8c6a323fcb 100644
--- a/chrome/browser/chromeos/login/screen_locker.cc
+++ b/chrome/browser/chromeos/login/screen_locker.cc
@@ -693,6 +693,11 @@ void ScreenLocker::Init() {
   lock_window_ = lock_window;
   lock_window_->Init(NULL, init_bounds);
 
+  // Disables input method explicitly, because:
+  // 1. Input method only works when top-level Widget gets keyboard focus.
+  // 2. Screen Locker shouldn't allow the user to use input method.
+  lock_window_->native_widget()->ReplaceInputMethod(NULL);
+
   g_signal_connect(lock_window_->GetNativeView(), "client-event",
                    G_CALLBACK(OnClientEventThunk), this);