Add chrome.inputMethodPrivate.onImeMenuActivationChanged API.

chrome/browser/chromeos/extensions/input_method_apitest_chromeos.cc

Index: chrome/browser/chromeos/extensions/input_method_apitest_chromeos.cc
diff --git a/chrome/browser/chromeos/extensions/input_method_apitest_chromeos.cc b/chrome/browser/chromeos/extensions/input_method_apitest_chromeos.cc
index 3256836bee59c9129bfafd1131879fe52dbff85a..562c0d8b7d53ed3428387a52c81f8026fe66f8c8 100644
--- a/chrome/browser/chromeos/extensions/input_method_apitest_chromeos.cc
+++ b/chrome/browser/chromeos/extensions/input_method_apitest_chromeos.cc
@@ -8,15 +8,19 @@
 
 #include "base/command_line.h"
 #include "base/memory/ref_counted.h"
+#include "base/prefs/pref_service.h"
 #include "base/strings/stringprintf.h"
 #include "chrome/browser/chromeos/extensions/input_method_event_router.h"
 #include "chrome/browser/chromeos/input_method/input_method_util.h"
+#include "chrome/common/pref_names.h"
+#include "chromeos/chromeos_switches.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "content/public/browser/notification_service.h"
 #include "extensions/common/switches.h"
 #include "extensions/browser/api/test/test_api.h"
 #include "extensions/browser/notification_types.h"
+#include "extensions/test/extension_test_message_listener.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/base/ime/chromeos/extension_ime_util.h"
 #include "ui/base/ime/chromeos/input_method_manager.h"
@@ -69,6 +73,7 @@ class ExtensionInputMethodApiTest : public ExtensionApiTest {
     command_line->AppendSwitchASCII(
         extensions::switches::kWhitelistedExtensionID,
         "ilanclmaeigfpnmdlgelmhkpkegdioip");
+    command_line->AppendSwitch(chromeos::switches::kEnableImeMenu);
   }
 };
 
@@ -77,6 +82,15 @@ class ExtensionInputMethodApiTest : public ExtensionApiTest {
 IN_PROC_BROWSER_TEST_F(ExtensionInputMethodApiTest, Basic) {
   // Listener for extension's background ready.
   TestListener listener;
+  // Listerner for IME menu event ready.

[stevenjb, 2016/01/21 19:16:16]

Listener

[Azure Wei, 2016/01/23 02:40:39]

Done.

+  ExtensionTestMessageListener ime_menu_listener("ime_menu_ready", false);
 
+  browser()->profile()->GetPrefs()->SetBoolean(prefs::kLangugaeImeMenuActivated,

[Devlin, 2016/01/21 19:30:25]

kLangugae?  Is that typo everywhere?

[Azure Wei, 2016/01/23 02:40:39]

Oh, I've so embarrassed. Corrected them in this cl.

+                                               true);
   ASSERT_TRUE(RunExtensionTest("input_method")) << message_;
+
+  // Trigger chrome.inputMethodPrivate.onImeMenuActivationChanged() event.
+  browser()->profile()->GetPrefs()->SetBoolean(prefs::kLangugaeImeMenuActivated,
+                                               false);
+  ASSERT_TRUE(ime_menu_listener.WaitUntilSatisfied()) << message_;
 }