Fix minor issues in ChromeDriver.

chrome/test/webdriver/session_manager.cc

Index: chrome/test/webdriver/session_manager.cc
diff --git a/chrome/test/webdriver/session_manager.cc b/chrome/test/webdriver/session_manager.cc
index f37611bb3cef74d00b005a7b3582e02ce110ddf3..93097ee6c68c8cdb360269599bfbf06804904955 100644
--- a/chrome/test/webdriver/session_manager.cc
+++ b/chrome/test/webdriver/session_manager.cc
@@ -77,14 +77,6 @@ std::string SessionManager::url_base() const {
   return url_base_;
 }
 
-void SessionManager::set_chrome_dir(const FilePath& chrome_dir) {
-  chrome_dir_ = chrome_dir;
-}
-
-FilePath SessionManager::chrome_dir() const {
-  return chrome_dir_;
-}
-
 SessionManager::SessionManager() : port_(""), url_base_("") {}
 
 SessionManager::~SessionManager() {}