Replace wstring with string16 in sandbox

sandbox/win/src/ipc_unittest.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 "base/basictypes.h"
 #include "sandbox/win/src/crosscall_client.h"
 #include "sandbox/win/src/crosscall_server.h"
 #include "sandbox/win/src/sharedmem_ipc_client.h"
 #include "sandbox/win/src/sharedmem_ipc_server.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ skipping 142 matching lines @@
       MakeChannels(kIPCChannelSize, 4096 * 4, &base_start);
   client_control->server_alive = HANDLE(1);
   FixChannels(client_control, base_start, kIPCChannelSize, FIX_PONG_READY);
 
   char* mem = reinterpret_cast<char*>(client_control);
   SharedMemIPCClient client(mem);
 
   CrossCallReturn answer;
   uint32 tag1 = 666;
   const wchar_t text[] = L"98765 - 43210";
-  std::wstring copied_text;
+  base::string16 copied_text;
   CrossCallParamsEx* actual_params;
 
   CrossCall(client, tag1, text, &answer);
   actual_params = reinterpret_cast<CrossCallParamsEx*>(client.GetBuffer());
   EXPECT_EQ(1, actual_params->GetParamsCount());
   EXPECT_EQ(tag1, actual_params->GetTag());
   EXPECT_TRUE(actual_params->GetParameterStr(0, &copied_text));
   EXPECT_STREQ(text, copied_text.c_str());
 
   // Check with an empty string.
@@ skipping 23 matching lines @@
   type = INVALID_TYPE;
   param_addr = actual_params->GetRawParameter(0, &param_size, &type);
   EXPECT_TRUE(NULL != param_addr);
   EXPECT_EQ(0, param_size);
   EXPECT_EQ(WCHAR_TYPE, type);
   EXPECT_TRUE(actual_params->GetParameterStr(0, &copied_text));
   EXPECT_TRUE(actual_params->GetParameterStr(1, &copied_text));
   EXPECT_STREQ(text, copied_text.c_str());
 
   param_size = 1;
-  std::wstring copied_text_p0, copied_text_p2;
+  base::string16 copied_text_p0, copied_text_p2;
 
   const wchar_t text2[] = L"AeFG";
   CrossCall(client, tag1, text2, null_text, text, &answer);
   actual_params = reinterpret_cast<CrossCallParamsEx*>(client.GetBuffer());
   EXPECT_EQ(3, actual_params->GetParamsCount());
   EXPECT_EQ(tag1, actual_params->GetTag());
   EXPECT_TRUE(actual_params->GetParameterStr(0, &copied_text_p0));
   EXPECT_STREQ(text2, copied_text_p0.c_str());
   EXPECT_TRUE(actual_params->GetParameterStr(2, &copied_text_p2));
   EXPECT_STREQ(text, copied_text_p2.c_str());
@@ skipping 414 matching lines @@
                                                  &call_return));
   EXPECT_EQ(SBOX_ALL_OK, call_return.call_outcome);
   EXPECT_TRUE(bar == call_return.extended[0].handle);
   EXPECT_EQ(foo, call_return.extended[1].unsigned_int);
 
   CloseChannelEvents(client_control);
   delete[] reinterpret_cast<char*>(client_control);
 }
 
 }  // namespace sandbox