EDK: Add mojo::util::StringPrintf() (etc.) and convert away from base's.

mojo/edk/system/message_pipe_perftest.cc

 // Copyright 2014 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 <stdint.h>
 
 #include <string>
 #include <utility>
 
 #include "base/bind.h"
 #include "base/logging.h"
-#include "base/strings/stringprintf.h"
 #include "mojo/edk/platform/scoped_platform_handle.h"
 #include "mojo/edk/system/local_message_pipe_endpoint.h"
 #include "mojo/edk/system/message_pipe.h"
 #include "mojo/edk/system/message_pipe_test_utils.h"
 #include "mojo/edk/system/proxy_message_pipe_endpoint.h"
 #include "mojo/edk/system/test/perf_log.h"
 #include "mojo/edk/system/test/stopwatch.h"
 #include "mojo/edk/test/test_utils.h"
 #include "mojo/edk/util/ref_ptr.h"
+#include "mojo/edk/util/string_printf.h"
 #include "mojo/public/cpp/system/macros.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using mojo::platform::ScopedPlatformHandle;
 using mojo::util::RefPtr;
+using mojo::util::StringPrintf;
 
 namespace mojo {
 namespace system {
 namespace {
 
 class MultiprocessMessagePipePerfTest
     : public test::MultiprocessMessagePipeTestBase {
  public:
   MultiprocessMessagePipePerfTest() : message_count_(0), message_size_(0) {}
 
@@ skipping 24 matching lines @@
   void SendQuitMessage(MessagePipe* mp) {
     CHECK_EQ(mp->WriteMessage(0, UserPointer<const void>(""), 0, nullptr,
                               MOJO_WRITE_MESSAGE_FLAG_NONE),
              MOJO_RESULT_OK);
   }
 
   void Measure(MessagePipe* mp) {
     // Have one ping-pong to ensure channel being established.
     WriteWaitThenRead(mp);
 
-    std::string test_name =
-        base::StringPrintf("IPC_Perf_%dx_%u", message_count_,
-                           static_cast<unsigned>(message_size_));
+    std::string test_name = StringPrintf("IPC_Perf_%dx_%u", message_count_,
+                                         static_cast<unsigned>(message_size_));
     test::Stopwatch stopwatch;
 
     stopwatch.Start();
     for (int i = 0; i < message_count_; ++i)
       WriteWaitThenRead(mp);
     test::LogPerfResult(test_name.c_str(), stopwatch.Elapsed() / 1000.0, "ms");
   }
 
  private:
   int message_count_;
@@ skipping 76 matching lines @@
   }
 
   SendQuitMessage(mp.get());
   mp->Close(0);
   EXPECT_EQ(0, helper()->WaitForChildShutdown());
 }
 
 }  // namespace
 }  // namespace system
 }  // namespace mojo