Update chromoting browser-tests to obtain user-name and password from a specified file.

chrome/test/remoting/remote_desktop_browsertest.h

Index: chrome/test/remoting/remote_desktop_browsertest.h
diff --git a/chrome/test/remoting/remote_desktop_browsertest.h b/chrome/test/remoting/remote_desktop_browsertest.h
index e4a025ec53d95f545635813d9c5f0ab3e7451e8d..3d33dc2c9702b1bf2bf890c9b08b335501d7b660 100644
--- a/chrome/test/remoting/remote_desktop_browsertest.h
+++ b/chrome/test/remoting/remote_desktop_browsertest.h
@@ -21,8 +21,10 @@ const char kNoCleanup[] = "no-cleanup";
 const char kNoInstall[] = "no-install";
 const char kWebAppCrx[] = "webapp-crx";
 const char kWebAppUnpacked[] = "webapp-unpacked";
-const char kUsername[] = "username";
-const char kkPassword[] = "password";
+const char kUserName[] = "username";
+const char kUserPassword[] = "password";
+const char kAccountsFile[] = "accounts-file";
+const char kAccountType[] = "account-type";
 const char kMe2MePin[] = "me2me-pin";
 const char kRemoteHostName[] = "remote-host-name";
 const char kExtensionName[] = "extension-name";
@@ -125,6 +127,9 @@ class RemoteDesktopBrowserTest : public extensions::PlatformAppBrowserTest {
   void SimulateMouseClickAt(
       int modifiers, blink::WebMouseEvent::Button button, int x, int y);
 
+  void SetUserNameAndPassword(
+      const base::FilePath &accounts_file, const std::string& account_type);
+
   // The following helpers each perform a composite task.
 
   // Install the chromoting extension