Changes header value sent for instant from 'preview' to 'instant'. I'm

chrome/browser/instant/instant_loader.cc

 // Copyright (c) 2011 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/instant/instant_loader.h"
 
 #include <algorithm>
 #include <string>
 #include <utility>
 #include <vector>
@@ skipping 43 matching lines @@
 // Number of ms to delay before updating the omnibox bounds. This is only used
 // when the bounds of the omnibox shrinks. If the bounds grows, we update
 // immediately.
 const int kUpdateBoundsDelayMS = 1000;
 
 // If this status code is seen instant is disabled for the specified host.
 const int kHostBlacklistStatusCode = 403;
 
 // Header and value set for all loads.
 const char kPreviewHeader[] = "X-Purpose";
-const char kPreviewHeaderValue[] = "preview";
+const char kPreviewHeaderValue[] = "instant";
 
 }  // namespace
 
 // FrameLoadObserver is responsible for determining if the page supports
 // instant after it has loaded.
 class InstantLoader::FrameLoadObserver : public NotificationObserver {
  public:
   FrameLoadObserver(InstantLoader* loader,
                     TabContents* tab_contents,
                     const string16& text,
@@ skipping 965 matching lines @@
   CommandLine* cl = CommandLine::ForCurrentProcess();
   if (cl->HasSwitch(switches::kInstantURL))
     instant_url = GURL(cl->GetSwitchValueASCII(switches::kInstantURL));
   preview_contents_->controller().LoadURL(instant_url, GURL(), transition_type);
   RenderViewHost* host = preview_contents_->render_view_host();
   host->Send(new ViewMsg_SearchBoxChange(
       host->routing_id(), user_text, verbatim, 0, 0));
   frame_load_observer_.reset(new FrameLoadObserver(
       this, preview_contents()->tab_contents(), user_text, verbatim));
 }