content: Move kViewSourceScheme constant into content namespace.

chrome_frame/chrome_frame_activex_base.h

 // 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.
 
 #ifndef CHROME_FRAME_CHROME_FRAME_ACTIVEX_BASE_H_
 #define CHROME_FRAME_CHROME_FRAME_ACTIVEX_BASE_H_
 
 #include <atlbase.h>
 #include <atlcom.h>
 #include <atlctl.h>
@@ skipping 1058 matching lines @@
     DoQueryService(SID_SWebBrowserApp, m_spClientSite, web_browser2.Receive());
     if (!web_browser2) {
       NOTREACHED() << "Failed to retrieve IWebBrowser2 interface";
       return;
     }
     base::win::ScopedVariant url;
     // Check to see if the URL uses a "view-source:" prefix, if so, open it
     // using chrome frame full tab mode by using 'cf:' protocol handler.
     // Also change the disposition to NEW_WINDOW since IE6 doesn't have tabs.
     if (url_to_open.has_scheme() &&
-        (url_to_open.SchemeIs(chrome::kViewSourceScheme) ||
+        (url_to_open.SchemeIs(content::kViewSourceScheme) ||
         url_to_open.SchemeIs(chrome::kAboutScheme))) {
       std::wstring chrome_url;
       chrome_url.append(kChromeProtocolPrefix);
       chrome_url.append(UTF8ToWide(url_to_open.spec()));
       url.Set(chrome_url.c_str());
       open_disposition = NEW_WINDOW;
     } else {
       url.Set(UTF8ToWide(url_to_open.spec()).c_str());
     }
 
@@ skipping 129 matching lines @@
   EventHandlers onreadystatechanged_;
   EventHandlers onprivatemessage_;
   EventHandlers onextensionready_;
 
   // Handle network requests when host network stack is used. Passed to the
   // automation client on initialization.
   scoped_ptr<UrlmonUrlRequestManager> url_fetcher_;
 };
 
 #endif  // CHROME_FRAME_CHROME_FRAME_ACTIVEX_BASE_H_