Support SetFocusedTextInputClient(NULL) in InputMethodTSF

ui/base/ime/input_method_tsf.cc

Index: ui/base/ime/input_method_tsf.cc
diff --git a/ui/base/ime/input_method_tsf.cc b/ui/base/ime/input_method_tsf.cc
index 6c433d6e0961247fb3546ed95fcb4bb1d3f8c4dd..ea694654440697feaeba808e48965bbbad2369f1 100644
--- a/ui/base/ime/input_method_tsf.cc
+++ b/ui/base/ime/input_method_tsf.cc
@@ -89,6 +89,12 @@ void InputMethodTSF::SetFocusedTextInputClient(TextInputClient* client) {
   if (IsWindowFocused(client)) {
     ui::TSFBridge::GetInstance()->SetFocusedClient(
         GetAttachedWindowHandle(client), client);
+  } else if (!client) {
+    // SetFocusedTextInputClient(NULL) must be interpreted as
+    // "Remove the attached client whichever client is attached".
+    TextInputClient* focused_client =
+        ui::TSFBridge::GetInstance()->GetFocusedTextInputClient();
+    ui::TSFBridge::GetInstance()->RemoveFocusedClient(focused_client);

[Seigo Nonaka, 2013/06/21 12:12:38]

can be follows?
ui::TSFBridge::GetInstance()->RemoveFocusedClient(
     ui::TSFBridge::GetInstance()->GetFocusedTextInputClient());

[Yohei Yukawa, 2013/06/22 10:46:40]

Done.

   }
   InputMethodWin::SetFocusedTextInputClient(client);
 }