Slow Reports - Embed Metadata in Traces

chrome/browser/tracing/background_tracing_field_trial.cc

 // Copyright 2015 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 <string>
 
 #include "base/json/json_reader.h"
 #include "base/metrics/field_trial.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/tracing/crash_service_uploader.h"
@@ skipping 20 matching lines @@
 void OnUploadComplete(TraceCrashServiceUploader* uploader,
                       base::Closure done_callback,
                       bool success,
                       const std::string& feedback) {
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
   done_callback.Run();
 }
 
 void UploadCallback(const std::string& upload_url,
                     const scoped_refptr<base::RefCountedString>& file_contents,
+                    const std::map<std::string, std::string>& metadata,
                     base::Closure callback) {
   TraceCrashServiceUploader* uploader = new TraceCrashServiceUploader(
       g_browser_process->system_request_context());
 
   uploader->SetUploadURL(upload_url);
+  uploader->SetMetadata(metadata);
   uploader->DoUpload(
       file_contents->data(), base::Bind(&OnUploadProgress),
       base::Bind(&OnUploadComplete, base::Owned(uploader), callback));
 }
 
 }  // namespace
 
 void SetupBackgroundTracingFieldTrial() {
   std::string config_text = variations::GetVariationParamValue(
       kBackgroundTracingFieldTrial, kBackgroundTracingConfig);
@@ skipping 18 matching lines @@
       content::BackgroundTracingConfig::FromDict(dict);
   if (!config)
     return;
 
   content::BackgroundTracingManager::GetInstance()->SetActiveScenario(
       config.Pass(), base::Bind(&UploadCallback, upload_url),
       content::BackgroundTracingManager::ANONYMIZE_DATA);
 }
 
 }  // namespace tracing