Remove the close button in context menu for IME menu.

chrome/common/extensions/extension_constants.cc

Index: chrome/common/extensions/extension_constants.cc
diff --git a/chrome/common/extensions/extension_constants.cc b/chrome/common/extensions/extension_constants.cc
index 5a722655a414415238c9591e7dda36acb3119845..2a0f1977244f43a89f0acb2ae2358b0255bc33fc 100644
--- a/chrome/common/extensions/extension_constants.cc
+++ b/chrome/common/extensions/extension_constants.cc
@@ -81,6 +81,15 @@ const char kSpeechSynthesisExtensionId[] =
 const char kWallpaperManagerId[] = "obklkkbkpaoaejdabbfldmcfplpdgolj";
 const char kWebstoreWidgetAppId[] = "fbjakikfhfdajcamjleinfciajelkpek";
 const char kZIPUnpackerExtensionId[] = "oedeeodfidgoollimchfdnbmhcpnklnd";
+const char* const kImeMenuExtensionIds[] = {"gjaehgfemfahhmlgpdfknkhdnemmolop",
+                                            "jkghodnilhceideoidjikpgommlajknk"};
+bool IsImeMenuExtensionId(const std::string extension_id) {

[stevenjb, 2016/01/28 18:45:04]

string&

[Azure Wei, 2016/01/29 02:43:59]

Done.

+  for (const char* id : kImeMenuExtensionIds) {
+    if (extension_id == id)
+      return true;
+  }
+  return false;
+}
 #else
 // The extension id for the web store extension.
 const char kChromeVoxExtensionId[] =