Bug 1097185 - Adds e10s content initialization of Shumway. r=jmathies

browser/components/nsBrowserGlue.js

@@ -580,9 +580,6 @@ BrowserGlue.prototype = {
     if (Services.prefs.getBoolPref("dom.identity.enabled")) {
       SignInToWebsiteUX.init();
     }
-#endif
-#ifdef NIGHTLY_BUILD
-    ShumwayUtils.init();
 #endif
     webrtcUI.init();
     AboutHome.init();
@@ -756,6 +753,12 @@ BrowserGlue.prototype = {
     // With older versions of the extension installed, this load will fail
     // passively.
     aWindow.messageManager.loadFrameScript("resource://pdf.js/pdfjschildbootstrap.js", true);
+#ifdef NIGHTLY_BUILD
+    // Registering Shumway bootstrap script the child processes.
+    aWindow.messageManager.loadFrameScript("chrome://shumway/content/bootstrap-content.js", true);
+    // Initializing Shumway (shall be run after child script registration).
+    ShumwayUtils.init();
+#endif
 #ifdef XP_WIN
     // For windows seven, initialize the jump list module.
     const WINTASKBAR_CONTRACTID = "@mozilla.org/windows-taskbar;1";