[Chromoting] Build webapp package with browser test JavaScript files loaded.

remoting/remoting_webapp_files.gypi

Index: remoting/remoting_webapp_files.gypi
diff --git a/remoting/remoting_webapp_files.gypi b/remoting/remoting_webapp_files.gypi
index 60d7b4bca05f2435f2fb0ccaf62bc27677601997..cdb1d77fe4b1bd865aeeb64700c069aacf282f85 100644
--- a/remoting/remoting_webapp_files.gypi
+++ b/remoting/remoting_webapp_files.gypi
@@ -50,6 +50,10 @@
       '<@(remoting_webapp_browsertest_js_files)',
       '<@(remoting_webapp_browsertest_js_mock_files)',
     ],
+    'remoting_webapp_browsertest_main_html_extra_files': [
+      '<@(remoting_webapp_browsertest_all_js_files)',
+      '../third_party/sinonjs/src/sinon.js',
+    ],
 
     #
     # Webapp unittest JavaScript files.
@@ -298,9 +302,6 @@
       '<@(remoting_webapp_js_logging_files)',
       '<@(remoting_webapp_js_ui_files)',
       '<@(remoting_webapp_js_signaling_files)',
-      # Uncomment this line to include browser test files in the web app
-      # to expedite debugging or local development.
-      #'<@(remoting_webapp_browsertest_all_js_files)',
     ],
 
     # The JS files required by unittest.html.