Don't spin the loading indicator for in-page navigations.

chrome/browser/ui/views/tabs/browser_tab_strip_controller.cc

 // Copyright (c) 2012 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/ui/views/tabs/browser_tab_strip_controller.h"
 
 #include "base/auto_reset.h"
 #include "base/command_line.h"
 #include "base/prefs/pref_service.h"
 #include "base/task_runner_util.h"
@@ skipping 34 matching lines @@
 #include "ui/views/controls/menu/menu_runner.h"
 #include "ui/views/widget/widget.h"
 
 using base::UserMetricsAction;
 using content::WebContents;
 
 namespace {
 
 TabRendererData::NetworkState TabContentsNetworkState(
     WebContents* contents) {
-  if (!contents || !contents->IsLoading())
+  if (!contents ||
+      !contents->IsLoading() ||
+      !contents->IsLoadToDifferentDocument()) {
     return TabRendererData::NETWORK_STATE_NONE;
+  }
+
   if (contents->IsWaitingForResponse())
     return TabRendererData::NETWORK_STATE_WAITING;
   return TabRendererData::NETWORK_STATE_LOADING;
 }
 
 TabStripLayoutType DetermineTabStripLayout(
     PrefService* prefs,
     chrome::HostDesktopType host_desktop_type,
     bool* adjust_layout) {
   *adjust_layout = false;
@@ skipping 521 matching lines @@
       url,
       mime_type.empty() ||
       net::IsSupportedMimeType(mime_type) ||
       content::PluginService::GetInstance()->GetPluginInfo(
           -1,                // process ID
           MSG_ROUTING_NONE,  // routing ID
           model_->profile()->GetResourceContext(),
           url, GURL(), mime_type, false,
           NULL, &plugin, NULL));
 }