Collect tab timing information for use in telementry-based startup tests

content/renderer/dom_automation_controller.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 "content/renderer/dom_automation_controller.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/json/json_string_value_serializer.h"
 #include "base/metrics/histogram.h"
@@ skipping 19 matching lines @@
   BindCallback("sendJSON", base::Bind(&DomAutomationController::SendJSON,
                                       base::Unretained(this)));
   BindCallback("sendWithId", base::Bind(&DomAutomationController::SendWithId,
                                         base::Unretained(this)));
   BindCallback("getHistogram",
                base::Bind(&DomAutomationController::GetHistogram,
                           base::Unretained(this)));
   BindCallback("getBrowserHistogram",
                base::Bind(&DomAutomationController::GetBrowserHistogram,
                           base::Unretained(this)));
+  BindCallback("getTabLoadTimingInformation",
+               base::Bind(&DomAutomationController::GetTabLoadTimingInformation,
+                          base::Unretained(this)));
 }
 
 void DomAutomationController::Send(const CppArgumentList& args,
                                    CppVariant* result) {
   if (args.size() != 1) {
     result->SetNull();
     return;
   }
 
   if (automation_id_ == MSG_ROUTING_NONE) {
@@ skipping 156 matching lines @@
     result->SetNull();
     return;
   }
 
   std::string histogram_json;
   sender_->Send(new ChildProcessHostMsg_GetBrowserHistogram(
       args[0].ToString(), &histogram_json));
   result->Set(histogram_json);
 }
 
+void DomAutomationController::GetTabLoadTimingInformation(
+                                  const CppArgumentList& args,
+                                  CppVariant* result) {
+  if (!sender_) {
+    NOTREACHED();
+    result->SetNull();
+    return;
+  }
+
+  std::string tab_timing_json;
+  sender_->Send(
+      new ChildProcessHostMsg_GetTabLoadTimingInformation(&tab_timing_json));
+  result->Set(tab_timing_json);
+}
+
 }  // namespace content