Add base:: to string16s in win8/.

win8/delegate_execute/delegate_execute_util.cc

Index: win8/delegate_execute/delegate_execute_util.cc
diff --git a/win8/delegate_execute/delegate_execute_util.cc b/win8/delegate_execute/delegate_execute_util.cc
index 6a3dc048dbd3f81f9f5ccf81c8d18215c4fc43fa..c3097a2a5ac50805b91223c5f6663cb5f24b8247 100644
--- a/win8/delegate_execute/delegate_execute_util.cc
+++ b/win8/delegate_execute/delegate_execute_util.cc
@@ -13,7 +13,7 @@ CommandLine CommandLineFromParameters(const wchar_t* params) {
   CommandLine command_line(CommandLine::NO_PROGRAM);
 
   if (params) {
-    string16 command_string(L"noprogram.exe ");
+    base::string16 command_string(L"noprogram.exe ");
     command_string.append(params);
     command_line.ParseFromString(command_string);
     command_line.SetProgram(base::FilePath());
@@ -24,7 +24,7 @@ CommandLine CommandLineFromParameters(const wchar_t* params) {
 
 CommandLine MakeChromeCommandLine(const base::FilePath& chrome_exe,
                                   const CommandLine& params,
-                                  const string16& argument) {
+                                  const base::string16& argument) {
   CommandLine chrome_cmd(params);
   chrome_cmd.SetProgram(chrome_exe);
 
@@ -34,15 +34,15 @@ CommandLine MakeChromeCommandLine(const base::FilePath& chrome_exe,
   return chrome_cmd;
 }
 
-string16 ParametersFromSwitch(const char* a_switch) {
+base::string16 ParametersFromSwitch(const char* a_switch) {
   if (!a_switch)
-    return string16();
+    return base::string16();
 
   CommandLine cmd_line(CommandLine::NO_PROGRAM);
 
   cmd_line.AppendSwitch(a_switch);
 
-  string16 command_string(cmd_line.GetCommandLineString());
+  base::string16 command_string(cmd_line.GetCommandLineString());
   TrimWhitespace(command_string, TRIM_ALL, &command_string);
   return command_string;
 }