Bug 1058708 - [e10s] View Page Source of context menu does not work in e10s. r=mconley

browser/base/content/browser-context.inc

@@ -368,7 +368,7 @@
       <menuitem id="context-viewsource"
                 label="&viewPageSourceCmd.label;"
                 accesskey="&viewPageSourceCmd.accesskey;"
-                oncommand="BrowserViewSourceOfDocument(gContextMenu.browser.contentDocument);"
+                oncommand="BrowserViewSourceOfDocument(gContextMenu.browser.contentDocumentAsCPOW);"
                 observes="isImage"/>
       <menuitem id="context-viewinfo"
                 label="&viewPageInfoCmd.label;"