[Chrome OS ECHO]: Rename API and method names

chrome/browser/extensions/component_loader.cc

Index: chrome/browser/extensions/component_loader.cc
diff --git a/chrome/browser/extensions/component_loader.cc b/chrome/browser/extensions/component_loader.cc
index 1fc05ce3559024c794aca7fe187c4b3984413996..a8723f41e3f3007cc5d556536cf6b41ad77f81c5 100644
--- a/chrome/browser/extensions/component_loader.cc
+++ b/chrome/browser/extensions/component_loader.cc
@@ -295,14 +295,14 @@ void ComponentLoader::AddDefaultComponentExtensions() {
           FilePath(FILE_PATH_LITERAL("/usr/share/chromeos-assets/gaia_auth")));
     }
 
-    // TODO(gauravsh): Only include offers extension on official builds.
-    FilePath offers_extension_path(FILE_PATH_LITERAL(
-        "/usr/share/chromeos-assets/offers"));
-    if (command_line->HasSwitch(switches::kOffersExtensionPath)) {
-      offers_extension_path =
-          command_line->GetSwitchValuePath(switches::kOffersExtensionPath);
+    // TODO(gauravsh): Only include echo extension on official builds.
+    FilePath echo_extension_path(FILE_PATH_LITERAL(
+        "/usr/share/chromeos-assets/echo"));
+    if (command_line->HasSwitch(switches::kEchoExtensionPath)) {
+      echo_extension_path =
+          command_line->GetSwitchValuePath(switches::kEchoExtensionPath);
     }
-    Add(IDR_OFFERS_MANIFEST, offers_extension_path);
+    Add(IDR_ECHO_MANIFEST, echo_extension_path);
 
 #if defined(OFFICIAL_BUILD)
     if (browser_defaults::enable_help_app) {