Make <webview> use out-of-process iframe architecture.

extensions/browser/guest_view/web_view/web_view_guest.cc

 // Copyright 2014 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 "extensions/browser/guest_view/web_view/web_view_guest.h"
 
 #include "base/message_loop/message_loop.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
 #include "components/browsing_data/storage_partition_http_cache_data_remover.h"
@@ skipping 37 matching lines @@
 #include "extensions/common/constants.h"
 #include "extensions/common/extension_messages.h"
 #include "extensions/strings/grit/extensions_strings.h"
 #include "ipc/ipc_message_macros.h"
 #include "net/base/escape.h"
 #include "net/base/net_errors.h"
 #include "ui/base/models/simple_menu_model.h"
 #include "url/url_constants.h"
 
 using base::UserMetricsAction;
+using content::GlobalRequestID;
 using content::RenderFrameHost;
 using content::ResourceType;
 using content::StoragePartition;
 using content::WebContents;
 using guest_view::GuestViewBase;
 using guest_view::GuestViewEvent;
 using guest_view::GuestViewManager;
 using ui_zoom::ZoomController;
 
 namespace extensions {
@@ skipping 923 matching lines @@
                                  bool force_navigation) {
   if (src.empty())
     return;
 
   GURL url = ResolveURL(src);
 
   // We wait for all the content scripts to load and then navigate the guest
   // if the navigation is embedder-initiated. For browser-initiated navigations,
   // content scripts will be ready.
   if (force_navigation) {
-    SignalWhenReady(
-        base::Bind(&WebViewGuest::LoadURLWithParams,
-                   weak_ptr_factory_.GetWeakPtr(), url, content::Referrer(),
-                   ui::PAGE_TRANSITION_AUTO_TOPLEVEL, force_navigation));
+    SignalWhenReady(base::Bind(
+        &WebViewGuest::LoadURLWithParams, weak_ptr_factory_.GetWeakPtr(), url,
+        content::Referrer(), ui::PAGE_TRANSITION_AUTO_TOPLEVEL,
+        GlobalRequestID(), force_navigation));
     return;
   }
   LoadURLWithParams(url, content::Referrer(), ui::PAGE_TRANSITION_AUTO_TOPLEVEL,
-                    force_navigation);
+                    GlobalRequestID(), force_navigation);
 }
 
 bool WebViewGuest::HandleKeyboardShortcuts(
     const content::NativeWebKeyboardEvent& event) {
   // <webview> outside of Chrome Apps do not handle keyboard shortcuts.
   if (!GuestViewManager::FromBrowserContext(browser_context())->
           IsOwnedByExtension(this)) {
     return false;
   }
 
@@ skipping 241 matching lines @@
   // decides that a fork should happen. At the time of writing this comment,
   // the only way a well behaving guest could hit this code path is if it
   // navigates to a URL that's associated with the default search engine.
   // This list of URLs is generated by chrome::GetSearchURLs. Validity checks
   // are performed inside LoadURLWithParams such that if the guest attempts
   // to navigate to a URL that it is not allowed to navigate to, a 'loadabort'
   // event will fire in the embedder, and the guest will be navigated to
   // about:blank.
   if (params.disposition == CURRENT_TAB) {
     LoadURLWithParams(params.url, params.referrer, params.transition,
+                      params.transferred_global_request_id,
                       true /* force_navigation */);
     return web_contents();
   }
 
   // This code path is taken if Ctrl+Click, middle click or any of the
   // keyboard/mouse combinations are used to open a link in a new tab/window.
   // This code path is also taken on client-side redirects from about:blank.
   CreateNewGuestWebViewWindow(params);
   return nullptr;
 }
@@ skipping 35 matching lines @@
 void WebViewGuest::ExitFullscreenModeForTab(
     content::WebContents* web_contents) {
   SetFullscreenState(false);
 }
 
 bool WebViewGuest::IsFullscreenForTabOrPending(
     const content::WebContents* web_contents) const {
   return is_guest_fullscreen_;
 }
 
-void WebViewGuest::LoadURLWithParams(const GURL& url,
-                                     const content::Referrer& referrer,
-                                     ui::PageTransition transition_type,
-                                     bool force_navigation) {
+void WebViewGuest::LoadURLWithParams(
+    const GURL& url,
+    const content::Referrer& referrer,
+    ui::PageTransition transition_type,
+    const GlobalRequestID& transferred_global_request_id,
+    bool force_navigation) {
   // Do not allow navigating a guest to schemes other than known safe schemes.
   // This will block the embedder trying to load unwanted schemes, e.g.
   // chrome://.
   bool scheme_is_blocked =
       (!content::ChildProcessSecurityPolicy::GetInstance()->IsWebSafeScheme(
            url.scheme()) &&
        !url.SchemeIs(url::kAboutScheme)) ||
       url.SchemeIs(url::kJavaScriptScheme);
   if (scheme_is_blocked || !url.is_valid()) {
     LoadAbort(true /* is_top_level */, url, net::ERR_ABORTED,
               net::ErrorToShortString(net::ERR_ABORTED));
     NavigateGuest(url::kAboutBlankURL, false /* force_navigation */);
     return;
   }
 
   if (!force_navigation && (src_ == url))
     return;
 
   GURL validated_url(url);
   web_contents()->GetRenderProcessHost()->FilterURL(false, &validated_url);
   // As guests do not swap processes on navigation, only navigations to
   // normal web URLs are supported.  No protocol handlers are installed for
   // other schemes (e.g., WebUI or extensions), and no permissions or bindings
   // can be granted to the guest process.
   content::NavigationController::LoadURLParams load_url_params(validated_url);
   load_url_params.referrer = referrer;
   load_url_params.transition_type = transition_type;
   load_url_params.extra_headers = std::string();
+  load_url_params.transferred_global_request_id = transferred_global_request_id;
   if (is_overriding_user_agent_) {
     load_url_params.override_user_agent =
         content::NavigationController::UA_OVERRIDE_TRUE;
   }
   GuestViewBase::LoadURLWithParams(load_url_params);
 
   src_ = validated_url;
 }
 
 void WebViewGuest::RequestNewWindowPermission(
@@ skipping 89 matching lines @@
     scoped_ptr<base::DictionaryValue> args(new base::DictionaryValue());
     DispatchEventToView(
         new GuestViewEvent(webview::kEventExitFullscreen, args.Pass()));
   }
   // Since we changed fullscreen state, sending a Resize message ensures that
   // renderer/ sees the change.
   web_contents()->GetRenderViewHost()->WasResized();
 }
 
 }  // namespace extensions