Send navigation_start to the browser in DidStartProvisionalLoad IPC

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"
@@ skipping 15 matching lines @@
     NavigationThrottle::ThrottleCheckResult* to_update,
     NavigationThrottle::ThrottleCheckResult result) {
   *to_update = result;
 }
 
 }  // namespace
 
 // static
 scoped_ptr<NavigationHandleImpl> NavigationHandleImpl::Create(
     const GURL& url,
-    FrameTreeNode* frame_tree_node) {
+    FrameTreeNode* frame_tree_node,
+    const base::TimeTicks& navigation_start) {
   return scoped_ptr<NavigationHandleImpl>(
-      new NavigationHandleImpl(url, frame_tree_node));
+      new NavigationHandleImpl(url, frame_tree_node, navigation_start));
 }
 
-NavigationHandleImpl::NavigationHandleImpl(const GURL& url,
-                                           FrameTreeNode* frame_tree_node)
+NavigationHandleImpl::NavigationHandleImpl(
+    const GURL& url,
+    FrameTreeNode* frame_tree_node,
+    const base::TimeTicks& navigation_start)
     : 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),
-      next_index_(0) {
+      next_index_(0),
+      navigation_start_(navigation_start) {
+  DCHECK(!navigation_start.is_null());
   // 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 =
@@ skipping 271 matching lines @@
       default:
         NOTREACHED();
     }
   }
   next_index_ = 0;
   state_ = WILL_REDIRECT_REQUEST;
   return NavigationThrottle::PROCEED;
 }
 
 }  // namespace content