Suppress creation of v8.log.

chrome/renderer/render_process_impl.cc

 // Copyright (c) 2010 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 "build/build_config.h"
 
 #if defined(OS_WIN)
 #include <windows.h>
 #include <objidl.h>
 #include <mlang.h>
@@ skipping 133 matching lines @@
     if (gdi_init_lpk) {
       gdi_init_lpk(0);
     }
   }
 #endif
 
   // Out of process dev tools rely upon auto break behavior.
   webkit_glue::SetJavaScriptFlags(
       "--debugger-auto-break"
       // Enable lazy in-memory profiling.
-      " --prof --prof-lazy");
+      " --prof --prof-lazy --logfile=*");
 
   const CommandLine& command_line = *CommandLine::ForCurrentProcess();
   if (command_line.HasSwitch(switches::kJavaScriptFlags)) {
     webkit_glue::SetJavaScriptFlags(
         command_line.GetSwitchValueASCII(switches::kJavaScriptFlags));
   }
 
   if (command_line.HasSwitch(switches::kEnableWatchdog)) {
     // TODO(JAR): Need to implement renderer IO msgloop watchdog.
   }
@@ skipping 206 matching lines @@
 }
 
 void RenderProcessImpl::ClearTransportDIBCache() {
   for (size_t i = 0; i < arraysize(shared_mem_cache_); ++i) {
     if (shared_mem_cache_[i]) {
       FreeTransportDIB(shared_mem_cache_[i]);
       shared_mem_cache_[i] = NULL;
     }
   }
 }