bug 1151407 - Remove _HTTPD_JS_PATH from xpcshell test harness. r=jmaher

Only the httpd.js unit tests actually rely on this. I tried to make them use Cu.import but they also rely on poking a bunch of stuff in httpd.js that's not exported, so instead I just made the test manifest copy httpd.js to the test directory and had them load it from there.

mobile/android/base/tests/robocop_head.js

@@ -992,7 +992,6 @@ function do_load_child_test_harness()
 
   let command =
         "const _HEAD_JS_PATH=" + uneval(_HEAD_JS_PATH) + "; "
-      + "const _HTTPD_JS_PATH=" + uneval(_HTTPD_JS_PATH) + "; "
       + "const _HEAD_FILES=" + uneval(_HEAD_FILES) + "; "
       + "const _TAIL_FILES=" + uneval(_TAIL_FILES) + "; "
       + "const _XPCSHELL_PROCESS='child';";

netwerk/test/httpserver/test/head_utils.js

@@ -4,11 +4,9 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-/**
- * Loads _HTTPD_JS_PATH file, which is dynamically defined by
- * <runxpcshelltests.py>.
- */
-load(_HTTPD_JS_PATH);
+var _HTTPD_JS_PATH = __LOCATION__.parent;
+_HTTPD_JS_PATH.append("httpd.js");
+load(_HTTPD_JS_PATH.path);
 
 // if these tests fail, we'll want the debug output
 DEBUG = true;

netwerk/test/httpserver/test/xpcshell.ini

@@ -2,7 +2,7 @@
 head = head_utils.js
 tail =
 skip-if = toolkit == 'gonk'
-support-files = data/**
+support-files = data/** ../httpd.js
 
 [test_async_response_sending.js]
 [test_basic_functionality.js]

testing/xpcshell/head.js

@@ -1209,7 +1209,6 @@ function do_load_child_test_harness()
 
   let command =
         "const _HEAD_JS_PATH=" + uneval(_HEAD_JS_PATH) + "; "
-      + "const _HTTPD_JS_PATH=" + uneval(_HTTPD_JS_PATH) + "; "
       + "const _HEAD_FILES=" + uneval(_HEAD_FILES) + "; "
       + "const _TAIL_FILES=" + uneval(_TAIL_FILES) + "; "
       + "const _TEST_NAME=" + uneval(_TEST_NAME) + "; "

testing/xpcshell/runxpcshelltests.py

@@ -421,7 +421,6 @@ class XPCShellTestThread(Thread):
             '-r', self.httpdManifest,
             '-m',
             '-s',
-            '-e', 'const _HTTPD_JS_PATH = "%s";' % self.httpdJSPath,
             '-e', 'const _HEAD_JS_PATH = "%s";' % self.headJSPath
         ]