Convert string16 to base::string16 in content.

content/shell/app/shell_breakpad_client.cc

 // Copyright 2013 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 "content/shell/app/shell_breakpad_client.h"
 
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/strings/string16.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 10 matching lines @@
 
 #if defined(OS_WIN)
 void ShellBreakpadClient::GetProductNameAndVersion(
     const base::FilePath& exe_path,
     base::string16* product_name,
     base::string16* version,
     base::string16* special_build,
     base::string16* channel_name) {
   *product_name = ASCIIToUTF16("content_shell");
   *version = ASCIIToUTF16(CONTENT_SHELL_VERSION);
-  *special_build = string16();
-  *channel_name = string16();
+  *special_build = base::string16();
+  *channel_name = base::string16();
 }
 #endif
 
 #if defined(OS_POSIX) && !defined(OS_MACOSX) && !defined(OS_IOS)
 void ShellBreakpadClient::GetProductNameAndVersion(std::string* product_name,
                                                    std::string* version) {
   *product_name = "content_shell";
   *version = CONTENT_SHELL_VERSION;
 }
 
@@ skipping 10 matching lines @@
   return true;
 }
 
 #if defined(OS_ANDROID)
 int ShellBreakpadClient::GetAndroidMinidumpDescriptor() {
   return kAndroidMinidumpDescriptor;
 }
 #endif
 
 }  // namespace content