Welcome page changes for Windows 10 and over.

chrome/browser/browser_process_impl.h

Index: chrome/browser/browser_process_impl.h
diff --git a/chrome/browser/browser_process_impl.h b/chrome/browser/browser_process_impl.h
index 6c1595c17e618140acb2f0045db8805139a314ce..288f24a8ab2071f584fcabcd771714eeedbefed6 100644
--- a/chrome/browser/browser_process_impl.h
+++ b/chrome/browser/browser_process_impl.h
@@ -140,6 +140,8 @@ class BrowserProcessImpl : public BrowserProcess,
   network_time::NetworkTimeTracker* network_time_tracker() override;
   gcm::GCMDriver* gcm_driver() override;
   memory::OomPriorityManager* GetOomPriorityManager() override;
+  ShellIntegration::DefaultWebClientState CachedDefaultWebClientState()
+      override;
 
   static void RegisterPrefs(PrefRegistrySimple* registry);
 
@@ -164,6 +166,8 @@ class BrowserProcessImpl : public BrowserProcess,
   void ApplyDefaultBrowserPolicy();
   void ApplyMetricsReportingPolicy();
 
+  void CacheDefaultWebClientState();
+
   scoped_ptr<MetricsServicesManager> metrics_services_manager_;
 
   scoped_ptr<IOThread> io_thread_;
@@ -313,6 +317,8 @@ class BrowserProcessImpl : public BrowserProcess,
   scoped_ptr<memory::OomPriorityManager> oom_priority_manager_;
 #endif
 
+  ShellIntegration::DefaultWebClientState cached_default_web_client_state_;
+
   DISALLOW_COPY_AND_ASSIGN(BrowserProcessImpl);
 };