Added command line switches and UI (controlled via a build option)

chrome/renderer/renderer_main.cc

Index: chrome/renderer/renderer_main.cc
diff --git a/chrome/renderer/renderer_main.cc b/chrome/renderer/renderer_main.cc
index b6cdd6ca80b6108a181360b790fcac36cfa73834..f0c96d50cc875cbbc13e2d352a22d1f8ac4c84b0 100644
--- a/chrome/renderer/renderer_main.cc
+++ b/chrome/renderer/renderer_main.cc
@@ -27,6 +27,7 @@
 #include "chrome/common/main_function_params.h"
 #include "chrome/common/net/net_resource_provider.h"
 #include "chrome/common/pepper_plugin_registry.h"
+#include "chrome/common/profiling.h"
 #include "chrome/renderer/renderer_main_platform_delegate.h"
 #include "chrome/renderer/render_process_impl.h"
 #include "chrome/renderer/render_thread.h"
@@ -185,6 +186,7 @@ int RendererMain(const MainFunctionParams& parameters) {
   const CommandLine& parsed_command_line = parameters.command_line_;
   base::mac::ScopedNSAutoreleasePool* pool = parameters.autorelease_pool_;
 
+  Profiling::StartAtStart();
 #if defined(OS_MACOSX)
   // TODO(viettrungluu): Code taken from browser_main.cc.
   int pipefd[2];
@@ -241,6 +243,7 @@ int RendererMain(const MainFunctionParams& parameters) {
               MessageLoop::TYPE_UI : MessageLoop::TYPE_DEFAULT);
 #endif
 
+  Profiling::MainMessageLoopStarted();
   base::PlatformThread::SetName("CrRendererMain");
 
   ui::SystemMonitor system_monitor;