PlzNavigate: Make ServiceWorker work with PlzNavigate.

content/browser/frame_host/navigation_handle_impl.cc

 // Copyright 2015 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 "content/browser/frame_host/navigation_handle_impl.h"
 
+#include "base/command_line.h"
 #include "content/browser/frame_host/frame_tree_node.h"
 #include "content/browser/frame_host/navigator.h"
 #include "content/browser/frame_host/navigator_delegate.h"
+#include "content/browser/service_worker/service_worker_context_wrapper.h"
+#include "content/browser/service_worker/service_worker_navigation_handle.h"
+#include "content/public/browser/browser_context.h"
 #include "content/public/browser/content_browser_client.h"
+#include "content/public/browser/storage_partition.h"
 #include "content/public/common/content_client.h"
+#include "content/public/common/content_switches.h"
 #include "net/url_request/redirect_info.h"
+#include "third_party/WebKit/public/web/WebSandboxFlags.h"
 
 namespace content {
 
 // static
 scoped_ptr<NavigationHandleImpl> NavigationHandleImpl::Create(
     const GURL& url,
     FrameTreeNode* frame_tree_node) {
   return scoped_ptr<NavigationHandleImpl>(
       new NavigationHandleImpl(url, frame_tree_node));
 }
 
 NavigationHandleImpl::NavigationHandleImpl(const GURL& url,
                                            FrameTreeNode* frame_tree_node)
     : url_(url),
       is_post_(false),
       has_user_gesture_(false),
       transition_(ui::PAGE_TRANSITION_LINK),
       is_external_protocol_(false),
       net_error_code_(net::OK),
       render_frame_host_(nullptr),
       is_same_page_(false),
       state_(INITIAL),
       is_transferring_(false),
       frame_tree_node_(frame_tree_node) {
+  // PlzNavigate
+  // Initialize the ServiceWorkerNavigationHandle if it can be created for this
+  // frame.
+  bool can_create_service_worker =
+      (frame_tree_node_->current_replication_state().sandbox_flags &
+       blink::WebSandboxFlags::Origin) != blink::WebSandboxFlags::Origin;
+  if (base::CommandLine::ForCurrentProcess()->HasSwitch(
+          switches::kEnableBrowserSideNavigation) &&
+      can_create_service_worker) {
+    BrowserContext* browser_context =
+        frame_tree_node_->navigator()->GetController()->GetBrowserContext();
+    // TODO(clamy): Picking the partition based on the URL is incorrect.
+    // See crbug.com/513539
+    StoragePartition* partition =
+        BrowserContext::GetStoragePartitionForSite(browser_context, url_);
+    DCHECK(partition);
+    ServiceWorkerContextWrapper* service_worker_context =
+        static_cast<ServiceWorkerContextWrapper*>(
+            partition->GetServiceWorkerContext());
+    service_worker_handle_.reset(
+        new ServiceWorkerNavigationHandle(service_worker_context));
+  }

[nasko, 2015/10/20 23:07:42]

Why put this code here instead of NavigationRequest? Logically it seems more
related to have the navigation request manage the SW related objects, not the
handle.

[clamy, 2015/10/21 16:33:48]

We need the SWHandle to persist until navigation commit. The
NavigationHandleImpl has that property, unlike the NavigationRequest which is
destroyed when the navigation is ready to commit.

+
   GetDelegate()->DidStartNavigation(this);
 }
 
 NavigationHandleImpl::~NavigationHandleImpl() {
   GetDelegate()->DidFinishNavigation(this);
 }
 
 NavigatorDelegate* NavigationHandleImpl::GetDelegate() const {
   return frame_tree_node_->navigator()->GetDelegate();
 }
@@ skipping 163 matching lines @@
 void NavigationHandleImpl::DidCommitNavigation(
     bool same_page,
     RenderFrameHostImpl* render_frame_host) {
   CHECK_IMPLIES(render_frame_host_, render_frame_host_ == render_frame_host);
   is_same_page_ = same_page;
   render_frame_host_ = render_frame_host;
   state_ = net_error_code_ == net::OK ? DID_COMMIT : DID_COMMIT_ERROR_PAGE;
 }
 
 }  // namespace content