Clean up dns prefetch code, and also port it.

chrome/common/temp_scaffolding_stubs.cc

 // Copyright (c) 2009 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 "temp_scaffolding_stubs.h"
 
 #include "build/build_config.h"
 
 #include <vector>
 
@@ skipping 146 matching lines @@
 // static
 bool Upgrade::SwapNewChromeExeIfPresent() {
   NOTIMPLEMENTED();
   return true;
 }
 
 void OpenFirstRunDialog(Profile* profile) { NOTIMPLEMENTED(); }
 
 GURL NewTabUIURL() {
   NOTIMPLEMENTED();
-  // TODO(port): returning a blank URL here confuses the page IDs so make sure 
+  // TODO(port): returning a blank URL here confuses the page IDs so make sure
   // we load something
   return GURL("http://dev.chromium.org");
 }
 
 //--------------------------------------------------------------------------
 
 PluginService* PluginService::GetInstance() {
   return Singleton<PluginService>::get();
 }
 
@@ skipping 90 matching lines @@
 const std::wstring& TabContents::GetTitle() const {
   // We use the title for the last committed entry rather than a pending
   // navigation entry. For example, when the user types in a URL, we want to
   // keep the old page's title until the new load has committed and we get a new
   // title.
   // The exception is with transient pages, for which we really want to use
   // their title, as they are not committed.
   NavigationEntry* entry = controller_->GetTransientEntry();
   if (entry)
     return entry->GetTitleForDisplay();
-  
+
   entry = controller_->GetLastCommittedEntry();
   if (entry)
     return entry->GetTitleForDisplay();
   else if (controller_->LoadingURLLazily())
     return controller_->GetLazyTitle();
   return EmptyWString();
 }
 
 void TabContents::NotifyNavigationStateChanged(unsigned changed_flags) {
   if (delegate_)
@@ skipping 28 matching lines @@
   else
     return max_page_id_;
 }
 
 void TabContents::UpdateMaxPageID(int32 page_id) {
   // Ensure both the SiteInstance and RenderProcessHost update their max page
   // IDs in sync. Only WebContents will also have site instances, except during
   // testing.
   if (GetSiteInstance())
     GetSiteInstance()->UpdateMaxPageID(page_id);
-  
+
   if (AsWebContents())
     AsWebContents()->process()->UpdateMaxPageID(page_id);
   else
     max_page_id_ = std::max(max_page_id_, page_id);
 }
 
 //--------------------------------------------------------------------------
 
 void RLZTracker::CleanupRlz() {
   NOTIMPLEMENTED();
@@ skipping 11 matching lines @@
 }
 
 // This depends on porting all the plugin IPC messages.
 bool IsPluginProcess() {
   NOTIMPLEMENTED();
   return false;
 }
 
 //--------------------------------------------------------------------------
 
-namespace chrome_browser_net {
-
-void EnableDnsPrefetch(bool) { NOTIMPLEMENTED(); }
-
-void DnsPrefetchGetHtmlInfo(std::string* output) { NOTIMPLEMENTED(); }
-
-void DnsPrefetchList(const std::vector<std::string>& hostnames) {
-  NOTIMPLEMENTED();
-}
-
-void SaveHostNamesForNextStartup(PrefService* local_state) { NOTIMPLEMENTED(); }
-
-void TrimSubresourceReferrers()  { NOTIMPLEMENTED(); }
-
-void SaveSubresourceReferrers(PrefService* local_state) { NOTIMPLEMENTED(); }
-
-}  // namespace chrome_browser_net
-
-//--------------------------------------------------------------------------
-
 // This is from chrome_plugin_util.cc.
 void CPB_Free(void* memory) { NOTIMPLEMENTED(); }
 
 //--------------------------------------------------------------------------
 
 void RunJavascriptMessageBox(WebContents* web_contents,
                              int dialog_flags,
                              const std::wstring& message_text,
                              const std::wstring& default_prompt_text,
                              bool display_suppress_checkbox,
@@ skipping 187 matching lines @@
                                TabContentsType* result_type) {
   NOTIMPLEMENTED();
   return false;
 }
 
 bool NewTabUIHandleURL(GURL* url,
                        TabContentsType* result_type) {
   NOTIMPLEMENTED();
   return false;
 }