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/command_line.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"
 #include "components/web_cache/browser/web_cache_manager.h"
 #include "content/public/browser/browser_context.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/child_process_security_policy.h"
 #include "content/public/browser/native_web_keyboard_event.h"
 #include "content/public/browser/navigation_entry.h"
 #include "content/public/browser/notification_details.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/notification_source.h"
 #include "content/public/browser/notification_types.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/render_widget_host_view.h"
 #include "content/public/browser/resource_request_details.h"
 #include "content/public/browser/site_instance.h"
 #include "content/public/browser/storage_partition.h"
 #include "content/public/browser/user_metrics.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/browser/web_contents_delegate.h"
+#include "content/public/common/content_switches.h"
 #include "content/public/common/media_stream_request.h"
 #include "content/public/common/page_zoom.h"
 #include "content/public/common/result_codes.h"
 #include "content/public/common/stop_find_action.h"
 #include "content/public/common/url_constants.h"
 #include "extensions/browser/api/declarative/rules_registry_service.h"
 #include "extensions/browser/api/extensions_api_client.h"
 #include "extensions/browser/api/guest_view/web_view/web_view_internal_api.h"
 #include "extensions/browser/api/web_request/web_request_api.h"
 #include "extensions/browser/extension_system.h"
@@ skipping 293 matching lines @@
 
   rules_registry_id_ = GetOrGenerateRulesRegistryID(
       owner_web_contents()->GetRenderProcessHost()->GetID(),
       view_instance_id());
 
   // We must install the mapping from guests to WebViews prior to resuming
   // suspended resource loads so that the WebRequest API will catch resource
   // requests.
   PushWebViewStateToIOThread();
 
-  ApplyAttributes(create_params);
+  // TODO(lazyboy): Fix this, site-per-process should also use this code path.
+  if (!base::CommandLine::ForCurrentProcess()->HasSwitch(
+          switches::kSitePerProcess)) {
+    ApplyAttributes(create_params);
+  }
 }
 
 void WebViewGuest::AttachWebViewHelpers(WebContents* contents) {
   if (web_view_guest_delegate_)
     web_view_guest_delegate_->OnAttachWebViewHelpers(contents);
   web_view_permission_helper_.reset(new WebViewPermissionHelper(this));
 }
 
 void WebViewGuest::ClearDataInternal(base::Time remove_since,
                                      uint32 removal_mask,
@@ skipping 478 matching lines @@
 }
 
 void WebViewGuest::FrameNameChanged(RenderFrameHost* render_frame_host,
                                     const std::string& name) {
   if (render_frame_host->GetParent())
     return;
 
   if (name_ == name)
     return;
 
-  ReportFrameNameChange(name);
+  // ReportFrameNameChange(name);
 }
 
 void WebViewGuest::ReportFrameNameChange(const std::string& name) {
   name_ = name;
   scoped_ptr<base::DictionaryValue> args(new base::DictionaryValue());
   args->SetString(webview::kName, name);
   DispatchEventToView(
       new GuestViewEvent(webview::kEventFrameNameChanged, args.Pass()));
 }
 
@@ skipping 175 matching lines @@
 
 void WebViewGuest::ApplyAttributes(const base::DictionaryValue& params) {
   std::string name;
   if (params.GetString(webview::kAttributeName, &name)) {
     // If the guest window's name is empty, then the WebView tag's name is
     // assigned. Otherwise, the guest window's name takes precedence over the
     // WebView tag's name.
     if (name_.empty())
       SetName(name);
   }
-  if (attached())
-    ReportFrameNameChange(name_);
+  // if (attached())
+  //  ReportFrameNameChange(name_);
 
   std::string user_agent_override;
   params.GetString(webview::kParameterUserAgentOverride, &user_agent_override);
   SetUserAgentOverride(user_agent_override);
 
   bool allow_transparency = false;
   if (params.GetBoolean(webview::kAttributeAllowTransparency,
       &allow_transparency)) {
     // We need to set the background opaque flag after navigation to ensure that
     // there is a RenderWidgetHostView available.
@@ skipping 151 matching lines @@
   //     Chrome Apps and WebUI. This is a browser initiated request and so
   //     we pass it along to the embedder's WebContentsDelegate to get the
   //     browser to perform the action for the <webview>.
   if (!params.is_renderer_initiated) {
     if (!owner_web_contents()->GetDelegate())
       return nullptr;
     return owner_web_contents()->GetDelegate()->OpenURLFromTab(
         owner_web_contents(), params);
   }
 
+  if (base::CommandLine::ForCurrentProcess()->HasSwitch(
+          switches::kSitePerProcess)) {
+    return OpenURLFromTabForSitePerProcess(source, params);
+  }
+
   // If the guest wishes to navigate away prior to attachment then we save the
   // navigation to perform upon attachment. Navigation initializes a lot of
   // state that assumes an embedder exists, such as RenderWidgetHostViewGuest.
   // Navigation also resumes resource loading which we don't want to allow
   // until attachment.
   if (!attached()) {
     WebViewGuest* opener = GetOpener();
     auto it = opener->pending_new_windows_.find(this);
     if (it == opener->pending_new_windows_.end())
       return nullptr;
@@ skipping 19 matching lines @@
     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;
 }
 
+content::WebContents* WebViewGuest::OpenURLFromTabForSitePerProcess(
+    content::WebContents* source,
+    const content::OpenURLParams& params) {
+  // site-per-process
+  LOG(WARNING) << "source: " << source << ", web_contents: " << web_contents();
+  // CHECK(0);
+  content::NavigationController::LoadURLParams load_url_params(params.url);
+  load_url_params.referrer = params.referrer;
+  load_url_params.transition_type = params.transition;
+  load_url_params.extra_headers = std::string();
+  // load_url_params.frame_tree_node_id = params.frame_tree_node_id;
+  load_url_params.transferred_global_request_id =
+      params.transferred_global_request_id;
+  source->GetController().LoadURLWithParams(load_url_params);
+  return source;
+}
+
 void WebViewGuest::WebContentsCreated(WebContents* source_contents,
                                       int opener_render_frame_id,
                                       const base::string16& frame_name,
                                       const GURL& target_url,
                                       content::WebContents* new_contents) {
   auto guest = WebViewGuest::FromWebContents(new_contents);
   CHECK(guest);
   guest->SetOpener(this);
   std::string guest_name = base::UTF16ToUTF8(frame_name);
   guest->name_ = guest_name;
@@ skipping 165 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