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..7f818c23dd33eb1be35beda33ffe06039574cbf2 100644
--- a/chrome/browser/chromeos/extensions/input_method_apitest_chromeos.cc
+++ b/chrome/browser/chromeos/extensions/input_method_apitest_chromeos.cc
@@ -8,9 +8,12 @@
 
 #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"
@@ -69,6 +72,7 @@ class ExtensionInputMethodApiTest : public ExtensionApiTest {
     command_line->AppendSwitchASCII(
         extensions::switches::kWhitelistedExtensionID,
         "ilanclmaeigfpnmdlgelmhkpkegdioip");
+    command_line->AppendSwitch(chromeos::switches::kEnableImeMenu);
   }
 };
 
@@ -78,5 +82,7 @@ IN_PROC_BROWSER_TEST_F(ExtensionInputMethodApiTest, Basic) {
   // Listener for extension's background ready.
   TestListener listener;
 
+  browser()->profile()->GetPrefs()->SetBoolean(prefs::kLangugaeImeMenuActivated,
+                                               true);
   ASSERT_TRUE(RunExtensionTest("input_method")) << message_;
 }