Ensure that the browser’s copy of page id is in sync with the renderer’s.

content/browser/frame_host/render_frame_host_impl.cc

 // Copyright 2013 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/render_frame_host_impl.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/containers/hash_tables.h"
+#include "base/debug/crash_logging.h"
 #include "base/lazy_instance.h"
 #include "base/metrics/histogram.h"
 #include "base/metrics/user_metrics_action.h"
+#include "base/strings/string_number_conversions.h"
 #include "base/time/time.h"
 #include "content/browser/accessibility/accessibility_mode_helper.h"
 #include "content/browser/accessibility/browser_accessibility_manager.h"
 #include "content/browser/accessibility/browser_accessibility_state_impl.h"
 #include "content/browser/child_process_security_policy_impl.h"
 #include "content/browser/frame_host/cross_process_frame_connector.h"
 #include "content/browser/frame_host/cross_site_transferring_request.h"
 #include "content/browser/frame_host/frame_tree.h"
 #include "content/browser/frame_host/frame_tree_node.h"
 #include "content/browser/frame_host/navigator.h"
@@ skipping 547 matching lines @@
   GetProcess()->FilterURL(false, &validated_url);
 
   frame_tree_node_->navigator()->DidFailLoadWithError(
       this, validated_url, error_code, error_description);
 }
 
 void RenderFrameHostImpl::OnDidRedirectProvisionalLoad(
     int32 page_id,
     const GURL& source_url,
     const GURL& target_url) {
+  if (render_view_host_->page_id_ != page_id) {
+    base::debug::SetCrashKeyValue("url1",
+                                  source_url.possibly_invalid_spec());
+    base::debug::SetCrashKeyValue("url2",
+                                  target_url.possibly_invalid_spec());
+    base::debug::SetCrashKeyValue(
+        "id1", base::IntToString(render_view_host_->page_id_));
+    base::debug::SetCrashKeyValue("id2",
+                                  base::IntToString(page_id));
+    CHECK(false);
+  }
   frame_tree_node_->navigator()->DidRedirectProvisionalLoad(
-      this, page_id, source_url, target_url);
+      this, render_view_host_->page_id_, source_url, target_url);
 }
 
 // Called when the renderer navigates.  For every frame loaded, we'll get this
 // notification containing parameters identifying the navigation.
 //
 // Subframes are identified by the page transition type.  For subframes loaded
 // as part of a wider page load, the page_id will be the same as for the top
 // level frame.  If the user explicitly requests a subframe navigation, we will
 // get a new page_id because we need to create a new navigation entry for that
 // action.
@@ skipping 340 matching lines @@
 void RenderFrameHostImpl::OnDidAssignPageId(int32 page_id) {
   // Update the RVH's current page ID so that future IPCs from the renderer
   // correspond to the new page.
   render_view_host_->page_id_ = page_id;
 }
 
 void RenderFrameHostImpl::OnUpdateTitle(
     int32 page_id,
     const base::string16& title,
     blink::WebTextDirection title_direction) {
+  if (render_view_host_->page_id_ != page_id) {
+    base::debug::SetCrashKeyValue(
+        "url1", GetLastCommittedURL().possibly_invalid_spec());
+    base::debug::SetCrashKeyValue(
+        "id1", base::IntToString(render_view_host_->page_id_));
+    base::debug::SetCrashKeyValue("id2",
+                                  base::IntToString(page_id));
+    CHECK(false);
+  }
   // This message is only sent for top-level frames. TODO(avi): when frame tree
   // mirroring works correctly, add a check here to enforce it.
   if (title.length() > kMaxTitleChars) {
     NOTREACHED() << "Renderer sent too many characters in title.";
     return;
   }
 
-  delegate_->UpdateTitle(this, page_id, title,
+  delegate_->UpdateTitle(this, render_view_host_->page_id_, title,
                          WebTextDirectionToChromeTextDirection(
                              title_direction));
 }
 
 void RenderFrameHostImpl::OnUpdateEncoding(const std::string& encoding_name) {
   // This message is only sent for top-level frames. TODO(avi): when frame tree
   // mirroring works correctly, add a check here to enforce it.
   delegate_->UpdateEncoding(this, encoding_name);
 }
 
@@ skipping 383 matching lines @@
   // Clear any state if a pending navigation is canceled or preempted.
   if (suspended_nav_params_)
     suspended_nav_params_.reset();
 
   TRACE_EVENT_ASYNC_END0("navigation",
                          "RenderFrameHostImpl navigation suspended", this);
   navigations_suspended_ = false;
 }
 
 }  // namespace content