Support webview tag when the container extension is embedded in a webUI

chrome/browser/chrome_content_browser_client.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/chrome_content_browser_client.h"
 
 #include <set>
 #include <utility>
 #include <vector>
 
@@ skipping 108 matching lines @@
 #include "content/public/browser/child_process_data.h"
 #include "content/public/browser/child_process_security_policy.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/resource_context.h"
 #include "content/public/browser/site_instance.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/browser/web_contents_view.h"
 #include "content/public/common/child_process_host.h"
 #include "content/public/common/content_descriptors.h"
+#include "content/public/common/url_utils.h"
 #include "extensions/browser/view_type_utils.h"
 #include "extensions/common/constants.h"
 #include "extensions/common/switches.h"
 #include "grit/generated_resources.h"
 #include "grit/ui_resources.h"
 #include "net/base/escape.h"
 #include "net/base/mime_util.h"
 #include "net/cookies/canonical_cookie.h"
 #include "net/cookies/cookie_options.h"
 #include "net/ssl/ssl_cert_request_info.h"
@@ skipping 644 matching lines @@
   extra_params->GetString(guestview::kParameterApi, &api_type);
 
   *guest_delegate =
       GuestView::Create(guest_web_contents,
                         GuestView::GetViewTypeFromString(api_type));
 }
 
 void ChromeContentBrowserClient::GuestWebContentsAttached(
     WebContents* guest_web_contents,
     WebContents* embedder_web_contents,
+    const GURL& embedder_frame_url,
     const base::DictionaryValue& extra_params) {
   Profile* profile = Profile::FromBrowserContext(
       embedder_web_contents->GetBrowserContext());
   ExtensionService* service =
       extensions::ExtensionSystem::Get(profile)->extension_service();
   if (!service) {
     NOTREACHED();
     return;
   }
-  const GURL& url = embedder_web_contents->GetSiteInstance()->GetSiteURL();
-  const Extension* extension =
-      service->extensions()->GetExtensionOrAppByURL(url);
+
+  // We usually require BrowserPlugins to be hosted by a storage isolated
+  // extension. We treat WebUI pages as a special case if they host the
+  // BrowserPlugin in a component extension iframe. In that case, we use the
+  // iframe's URL to determine the extension.
+  const GURL& embedder_site_url =
+      embedder_web_contents->GetSiteInstance()->GetSiteURL();
+  const Extension* extension = service->extensions()->GetExtensionOrAppByURL(
+      content::HasWebUIScheme(embedder_site_url) ?
+          embedder_frame_url : embedder_site_url);
   if (!extension) {
     // It's ok to return here, since we could be running a browser plugin
     // outside an extension, and don't need to attach a
     // BrowserPluginGuestDelegate in that case;
     // e.g. running with flag --enable-browser-plugin-for-all-view-types.
     return;
   }
 
   GuestView* guest = GuestView::FromWebContents(guest_web_contents);
   if (!guest) {
@@ skipping 1510 matching lines @@
   }
   return NULL;
 }
 
 bool ChromeContentBrowserClient::SupportsBrowserPlugin(
     content::BrowserContext* browser_context, const GURL& site_url) {
   if (CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kEnableBrowserPluginForAllViewTypes))
     return true;
 
+  if (content::HasWebUIScheme(site_url))
+    return true;
+
   Profile* profile = Profile::FromBrowserContext(browser_context);
   ExtensionService* service =
       extensions::ExtensionSystem::Get(profile)->extension_service();
   if (!service)
     return false;
 
   const Extension* extension =
       service->extensions()->GetExtensionOrAppByURL(site_url);
   if (!extension)
     return false;
@@ skipping 181 matching lines @@
 #if defined(USE_NSS)
 crypto::CryptoModuleBlockingPasswordDelegate*
     ChromeContentBrowserClient::GetCryptoPasswordDelegate(
         const GURL& url) {
   return chrome::NewCryptoModuleBlockingDialogDelegate(
       chrome::kCryptoModulePasswordKeygen, url.host());
 }
 #endif
 
 }  // namespace chrome