Enough hacks to make wstring printfs unneeded

base/win/event_trace_consumer_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.
 //
 // Unit tests for event trace consumer base class.
 #include "base/win/event_trace_consumer.h"
 
 #include <list>
 
 #include <objbase.h>
@@ skipping 61 matching lines @@
  private:
   DISALLOW_COPY_AND_ASSIGN(TestConsumer);
 };
 
 ScopedHandle TestConsumer::sank_event_;
 EventQueue TestConsumer::events_;
 
 class EtwTraceConsumerBaseTest: public testing::Test {
  public:
   EtwTraceConsumerBaseTest()
-      : session_name_(StringPrintf(L"TestSession-%d", GetCurrentProcId())) {
+      : session_name_(L""/*StringPrintf(L"TestSession-%d", GetCurrentProcId())*/) {
   }
 
   void SetUp() override {
     // Cleanup any potentially dangling sessions.
     EtwTraceProperties ignore;
     EtwTraceController::Stop(session_name_.c_str(), &ignore);
 
     // Allocate a new GUID for each provider test.
     ASSERT_HRESULT_SUCCEEDED(::CoCreateGuid(&test_provider_));
   }
@@ skipping 264 matching lines @@
     return;
   }
   ASSERT_HRESULT_SUCCEEDED(hr) << "RoundTripEvent failed";
   ASSERT_TRUE(trace != NULL);
   ASSERT_EQ(sizeof(kData), trace->MofLength);
   ASSERT_STREQ(kData, reinterpret_cast<const char*>(trace->MofData));
 }
 
 }  // namespace win
 }  // namespace base