Add a mode flag to the tracing framework.

chrome/browser/automation/automation_provider.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 "chrome/browser/automation/automation_provider.h"
 
 #include <set>
 
 #include "base/bind.h"
 #include "base/callback.h"
@@ skipping 752 matching lines @@
     return;
   }
 
   view->Send(new ChromeViewMsg_JavaScriptStressTestControl(
       view->GetRoutingID(), cmd, param));
 }
 
 void AutomationProvider::BeginTracing(const std::string& categories,
                                       bool* success) {
   tracing_data_.trace_output.clear();
-  *success = TraceController::GetInstance()->BeginTracing(this, categories);
+  *success = TraceController::GetInstance()->BeginTracing(
+      this,
+      categories,
+      base::debug::TraceLog::RECORD_UNTIL_FULL);
 }
 
 void AutomationProvider::EndTracing(IPC::Message* reply_message) {
   bool success = false;
   if (!tracing_data_.reply_message.get())
     success = TraceController::GetInstance()->EndTracingAsync(this);
   if (success) {
     // Defer EndTracing reply until TraceController calls us back with all the
     // events.
     tracing_data_.reply_message.reset(reply_message);
@@ skipping 38 matching lines @@
 
   return NULL;
 }
 
 void AutomationProvider::SaveAsAsync(int tab_handle) {
   NavigationController* tab = NULL;
   WebContents* web_contents = GetWebContentsForHandle(tab_handle, &tab);
   if (web_contents)
     web_contents->OnSavePage();
 }