[chromedriver] Prefix server logs with chromedriver_log_.

chrome/test/chromedriver/chrome_launcher.cc

Index: chrome/test/chromedriver/chrome_launcher.cc
diff --git a/chrome/test/chromedriver/chrome_launcher.cc b/chrome/test/chromedriver/chrome_launcher.cc
index a8c6cc54bb3752227721823f89793e6bf3306d8c..adfbf6ed97dfaf22fe356b7203ca863ef7141ade 100644
--- a/chrome/test/chromedriver/chrome_launcher.cc
+++ b/chrome/test/chromedriver/chrome_launcher.cc
@@ -500,7 +500,7 @@ Status LaunchAndroidChrome(
     device->TearDown();
     return Status(
         kSessionNotCreatedException,
-        base::StringPrintf("please close %s and try again", package.c_str()));
+        base::StringPrintf("please close '%s' and try again", package.c_str()));
   }
 
   scoped_ptr<DevToolsClient> devtools_websocket_client;