Stop using renderer specific host ids in ResourceDispatcher. This allows it ...

chrome/browser/tab_contents/web_contents.cc

 // Copyright (c) 2006-2008 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 "chrome/browser/tab_contents/web_contents.h"
 
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
 #include "base/file_version_info.h"
 #include "base/process_util.h"
@@ skipping 420 matching lines @@
 void WebContents::DisassociateFromPopupCount() {
   render_view_host()->DisassociateFromPopupCount();
 }
 
 void WebContents::DidBecomeSelected() {
   TabContents::DidBecomeSelected();
 
   if (render_widget_host_view())
     render_widget_host_view()->DidBecomeSelected();
 
-  CacheManagerHost::GetInstance()->ObserveActivity(process()->host_id());
+  // If pid() is -1, that means the RenderProcessHost still hasn't been
+  // initialized.  It'll register with CacheManagerHost when it is.
+  if (process()->pid() != -1)
+    CacheManagerHost::GetInstance()->ObserveActivity(process()->pid());
 }
 
 void WebContents::WasHidden() {
   if (!capturing_contents()) {
     // |render_view_host()| can be NULL if the user middle clicks a link to open
     // a tab in then background, then closes the tab before selecting it.  This
     // is because closing the tab calls WebContents::Destroy(), which removes
     // the |render_view_host()|; then when we actually destroy the window,
     // OnWindowPosChanged() notices and calls HideContents() (which calls us).
     if (render_widget_host_view())
@@ skipping 1399 matching lines @@
     // The favicon url isn't valid. This means there really isn't a favicon,
     // or the favicon url wasn't obtained before the load started. This assumes
     // the later.
     // TODO(sky): Need a way to set the favicon that doesn't involve generating
     // its url.
     new_url->SetFavIconURL(TemplateURL::GenerateFaviconURL(params.referrer));
   }
   new_url->set_safe_for_autoreplace(true);
   url_model->Add(new_url);
 }