Revert 239759 "The comment in base64.h implies that base::Base64..."

trunk/src/chrome/browser/ui/webui/print_preview/print_preview_handler.cc

 // 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.
 
 #include "chrome/browser/ui/webui/print_preview/print_preview_handler.h"
 
 #include <ctype.h>
 
 #include <string>
 
@@ skipping 1154 matching lines @@
     base::StringValue gcp_url_value(gcp_url.spec());
     web_ui()->CallJavascriptFunction("setUseCloudPrint", gcp_url_value);
   }
 }
 
 void PrintPreviewHandler::SendCloudPrintJob(const base::RefCountedBytes* data) {
   // BASE64 encode the job data.
   std::string raw_data(reinterpret_cast<const char*>(data->front()),
                        data->size());
   std::string base64_data;
-  base::Base64Encode(raw_data, &base64_data);
+  if (!base::Base64Encode(raw_data, &base64_data)) {
+    NOTREACHED() << "Base64 encoding PDF data.";
+  }
   StringValue data_value(base64_data);
 
   web_ui()->CallJavascriptFunction("printToCloud", data_value);
 }
 
 WebContents* PrintPreviewHandler::GetInitiator() const {
   printing::PrintPreviewDialogController* dialog_controller =
       printing::PrintPreviewDialogController::GetInstance();
   if (!dialog_controller)
     return NULL;
@@ skipping 374 matching lines @@
     const local_discovery::DeviceDescription& description,
     bool has_local_printing,
     base::DictionaryValue* printer_value) {
   printer_value->SetString("serviceName", name);
   printer_value->SetString("name", description.name);
   printer_value->SetBoolean("hasLocalPrinting", has_local_printing);
   printer_value->SetBoolean("isUnregistered", description.id.empty());
 }
 
 #endif