Convert EventRouter to use ProcessMap::GetMostLikelyContextType rather than

extensions/common/extension_api.cc

Index: extensions/common/extension_api.cc
diff --git a/extensions/common/extension_api.cc b/extensions/common/extension_api.cc
index 8267695b62b9da73b2a6865c6c0a3c3b401b4564..01fb8906945eb0abb63e989ea5620c7d90919d80 100644
--- a/extensions/common/extension_api.cc
+++ b/extensions/common/extension_api.cc
@@ -296,19 +296,6 @@ Feature::Availability ExtensionAPI::IsAvailable(const std::string& full_name,
   return feature->IsAvailableToContext(extension, context, url);
 }
 
-bool ExtensionAPI::IsAvailableInUntrustedContext(const std::string& name,
-                                                 const Extension* extension) {
-  return IsAvailable(name, extension, Feature::CONTENT_SCRIPT_CONTEXT, GURL())
-             .is_available() ||
-         IsAvailable(
-             name, extension, Feature::UNBLESSED_EXTENSION_CONTEXT, GURL())
-             .is_available() ||
-         IsAvailable(name, extension, Feature::BLESSED_WEB_PAGE_CONTEXT, GURL())
-             .is_available() ||
-         IsAvailable(name, extension, Feature::WEB_PAGE_CONTEXT, GURL())
-             .is_available();
-}
-
 bool ExtensionAPI::IsAvailableToWebUI(const std::string& name,
                                       const GURL& url) {
   return IsAvailable(name, NULL, Feature::WEBUI_CONTEXT, url).is_available();