Adding more logs for the browser.GetSystemInfo() random crash.

This is temporary - will be removed once we pin down the crash.

BUG=424024
TEST=
TBR=kbr@chromium.org
NOTRY=true

Review URL: https://codereview.chromium.org/699043002

Cr-Commit-Position: refs/heads/master@{#302512}

chrome/browser/chrome_browser_main.cc

@@ -1065,6 +1065,7 @@ void ChromeBrowserMainParts::PreProfileInit() {
 
 void ChromeBrowserMainParts::PostProfileInit() {
   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostProfileInit");
+  VLOG(2) << "ChromeBrowserMainParts::PostProfileInit";
   LaunchDevToolsHandlerIfNeeded(parsed_command_line());
   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
     chrome_extra_parts_[i]->PostProfileInit();

chrome/browser/devtools/remote_debugging_server.cc

@@ -36,8 +36,10 @@ RemoteDebuggingServer::RemoteDebuggingServer(
     chrome::HostDesktopType host_desktop_type,
     const std::string& ip,
     int port) {
+  VLOG(2) << "RemoteDebuggingServer::RemoteDebuggingServer : BEGIN";
   base::FilePath output_dir;
   if (!port) {
+    VLOG(2) << "RemoteDebuggingServer::RemoteDebuggingServer : !port";
     // The client requested an ephemeral port. Must write the selected
     // port to a well-known location in the profile directory to
     // bootstrap the connection process.
@@ -45,13 +47,16 @@ RemoteDebuggingServer::RemoteDebuggingServer(
     DCHECK(result);
   }
 
+  VLOG(2) << "RemoteDebuggingServer::RemoteDebuggingServer : factory";
   scoped_ptr<content::DevToolsHttpHandler::ServerSocketFactory> factory(
       new TCPServerSocketFactory(ip, port, 1));
+  VLOG(2) << "RemoteDebuggingServer::RemoteDebuggingServer : handler";
   devtools_http_handler_ = content::DevToolsHttpHandler::Start(
       factory.Pass(),
       "",
       new BrowserListTabContentsProvider(host_desktop_type),
       output_dir);
+  VLOG(2) << "RemoteDebuggingServer::RemoteDebuggingServer : END";
 }
 
 RemoteDebuggingServer::~RemoteDebuggingServer() {

content/browser/devtools/devtools_http_handler_impl.cc

@@ -250,6 +250,7 @@ DevToolsHttpHandler* DevToolsHttpHandler::Start(
     const std::string& frontend_url,
     DevToolsHttpHandlerDelegate* delegate,
     const base::FilePath& active_port_output_directory) {
+  VLOG(2) << "DevToolsHttpHandler::Start";
   DevToolsHttpHandlerImpl* http_handler =
       new DevToolsHttpHandlerImpl(server_socket_factory.Pass(),
                                   frontend_url,