Change the Lo-Fi snackbar strings for Lo-Fi preview pages

chrome/browser/net/spdyproxy/data_reduction_proxy_chrome_io_data.cc

 // Copyright 2015 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/net/spdyproxy/data_reduction_proxy_chrome_io_data.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/prefs/pref_service.h"
@@ skipping 24 matching lines @@
 namespace content {
 class BrowserContext;
 }
 
 using data_reduction_proxy::DataReductionProxyParams;
 
 namespace {
 
 // For Android builds, notifies the TabAndroid associated with |web_contents|
 // that a Lo-Fi response has been received. The TabAndroid then handles showing
-// Lo-Fi UI if this is the first Lo-Fi response for a page load.
-void OnLoFiResponseReceivedOnUI(content::WebContents* web_contents) {
+// Lo-Fi UI if this is the first Lo-Fi response for a page load. |is_preview|
+// indicates whether the response was a Lo-Fi preview response.
+void OnLoFiResponseReceivedOnUI(content::WebContents* web_contents,
+                                bool is_preview) {
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
 #if defined(OS_ANDROID)
   TabAndroid* tab = TabAndroid::FromWebContents(web_contents);
   if (tab)
-    tab->OnLoFiResponseReceived();
+    tab->OnLoFiResponseReceived(is_preview);
 #endif
 }
 
 } // namespace
 
 scoped_ptr<data_reduction_proxy::DataReductionProxyIOData>
 CreateDataReductionProxyChromeIOData(
     net::NetLog* net_log,
     PrefService* prefs,
     const scoped_refptr<base::SingleThreadTaskRunner>& io_task_runner,
@@ skipping 44 matching lines @@
                          base::Unretained(
                              data_reduction_proxy_io_data->configurator())),
               ui_task_runner, io_task_runner,
               g_browser_process->GetApplicationLocale()));
   data_reduction_proxy_io_data->set_debug_ui_service(
       std::move(data_reduction_proxy_ui_service));
 #endif
 
   return data_reduction_proxy_io_data;
 }