base: Remove the string logging from CHECK().

base/debug/stack_trace.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/debug/stack_trace.h"
 
 #include <string.h>
 
 #include <algorithm>
 #include <sstream>
@@ skipping 246 matching lines @@
   return depth;
 }
 
 ScopedStackFrameLinker::ScopedStackFrameLinker(void* fp, void* parent_fp)
     : fp_(fp),
       parent_fp_(parent_fp),
       original_parent_fp_(LinkStackFrames(fp, parent_fp)) {}
 
 ScopedStackFrameLinker::~ScopedStackFrameLinker() {
   void* previous_parent_fp = LinkStackFrames(fp_, original_parent_fp_);
-  CHECK_EQ(parent_fp_, previous_parent_fp)
-      << "Stack frame's parent pointer has changed!";
+  // Stack frame's parent pointer has changed!
+  CHECK_EQ(parent_fp_, previous_parent_fp);
 }
 
 #endif  // HAVE_TRACE_STACK_FRAME_POINTERS
 
 }  // namespace debug
 }  // namespace base