Add base:: to string16s in tools/.

R=grt@chromium.org
BUG=329295

Review URL: https://codereview.chromium.org/99363007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@241925 0039d316-1c4b-4281-b951-d872f2087c98

tools/set_default_handler/set_default_handler_main.cc

@@ -41,15 +41,15 @@ int wmain(int argc, wchar_t* argv[]) {
   ui::win::CreateATLModuleIfNeeded();
 
   CommandLine* command_line = CommandLine::ForCurrentProcess();
-  string16 protocol(command_line->GetSwitchValueNative(kSwitchProtocol));
+  base::string16 protocol(command_line->GetSwitchValueNative(kSwitchProtocol));
   if (protocol.empty())
     protocol = kDefaultProtocol;
 
-  string16 program(command_line->GetSwitchValueNative(kSwitchProgram));
+  base::string16 program(command_line->GetSwitchValueNative(kSwitchProgram));
   if (program.empty())
     program = kDefaultProgram;
 
-  std::vector<string16> choices;
+  std::vector<base::string16> choices;
   HRESULT result = S_OK;
   win8::OpenWithDialogController controller;
   result = controller.RunSynchronously(NULL, protocol, program, &choices);