Move StringPiece into the base namespace. It is colliding

chrome/browser/ssl/ssl_blocking_page.cc

 // Copyright (c) 2006-2008 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/ssl/ssl_blocking_page.h"
 
 #include "app/l10n_util.h"
 #include "app/resource_bundle.h"
 #include "base/histogram.h"
 #include "base/string_piece.h"
@@ skipping 63 matching lines @@
 
   strings.SetString(L"proceed",
                     l10n_util::GetString(IDS_SSL_BLOCKING_PAGE_PROCEED));
   strings.SetString(L"exit",
                     l10n_util::GetString(IDS_SSL_BLOCKING_PAGE_EXIT));
 
   strings.SetString(L"textdirection",
       (l10n_util::GetTextDirection() == l10n_util::RIGHT_TO_LEFT) ?
        L"rtl" : L"ltr");
 
-  static const StringPiece html(
+  static const base::StringPiece html(
       ResourceBundle::GetSharedInstance().GetRawDataResource(
           IDR_SSL_ROAD_BLOCK_HTML));
 
   return jstemplate_builder::GetI18nTemplateHtml(html, &strings);
 }
 
 void SSLBlockingPage::UpdateEntry(NavigationEntry* entry) {
   const net::SSLInfo& ssl_info = handler_->ssl_info();
   int cert_id = CertStore::GetSharedInstance()->StoreCert(
       ssl_info.cert, tab()->render_view_host()->process()->id());
@@ skipping 56 matching lines @@
       L"moreInfo1", L"moreInfo2", L"moreInfo3", L"moreInfo4", L"moreInfo5"
   };
   int i;
   for (i = 0; i < static_cast<int>(extra_info.size()); i++) {
     strings->SetString(keys[i], extra_info[i]);
   }
   for (;i < 5; i++) {
     strings->SetString(keys[i], L"");
   }
 }