Record document mode histogram in UMA on every upload.

chrome/browser/metrics/chrome_metrics_service_client.cc

 // Copyright 2014 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/metrics/chrome_metrics_service_client.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/callback.h"
@@ skipping 222 matching lines @@
   collect_final_metrics_done_callback_ = done_callback;
 
   // Begin the multi-step process of collecting memory usage histograms:
   // First spawn a task to collect the memory details; when that task is
   // finished, it will call OnMemoryDetailCollectionDone. That will in turn
   // call HistogramSynchronization to collect histograms from all renderers and
   // then call OnHistogramSynchronizationDone to continue processing.
   DCHECK(!waiting_for_collect_final_metrics_step_);
   waiting_for_collect_final_metrics_step_ = true;
 
-#if !defined(OS_CHROMEOS) && !defined(OS_IOS)
-  // Record the signin status histogram value.
-  signin_status_metrics_provider_->RecordSigninStatusHistogram();
-#endif
-
   base::Closure callback =
       base::Bind(&ChromeMetricsServiceClient::OnMemoryDetailCollectionDone,
                  weak_ptr_factory_.GetWeakPtr());
 
   scoped_refptr<MetricsMemoryDetails> details(
       new MetricsMemoryDetails(callback, &memory_growth_tracker_));
   details->StartFetch(MemoryDetails::UPDATE_USER_METRICS);
 
   // Collect WebCore cache information to put into a histogram.
   for (content::RenderProcessHost::iterator i(
@@ skipping 75 matching lines @@
 
 #if defined(OS_CHROMEOS)
   ChromeOSMetricsProvider* chromeos_metrics_provider =
       new ChromeOSMetricsProvider;
   chromeos_metrics_provider_ = chromeos_metrics_provider;
   metrics_service_->RegisterMetricsProvider(
       scoped_ptr<metrics::MetricsProvider>(chromeos_metrics_provider));
 #endif  // defined(OS_CHROMEOS)
 
 #if !defined(OS_CHROMEOS) && !defined(OS_IOS)
-  signin_status_metrics_provider_ =
-      SigninStatusMetricsProvider::CreateInstance();
   metrics_service_->RegisterMetricsProvider(
-      scoped_ptr<metrics::MetricsProvider>(signin_status_metrics_provider_));
+      scoped_ptr<metrics::MetricsProvider>(
+          SigninStatusMetricsProvider::CreateInstance()));
 #endif
 }
 
 void ChromeMetricsServiceClient::OnInitTaskGotHardwareClass() {
   const base::Closure got_plugin_info_callback =
       base::Bind(&ChromeMetricsServiceClient::OnInitTaskGotPluginInfo,
                  weak_ptr_factory_.GetWeakPtr());
 
 #if defined(ENABLE_PLUGINS)
   plugin_metrics_provider_->GetPluginInformation(got_plugin_info_callback);
@@ skipping 197 matching lines @@
   // Capture the histogram samples.
   if (dumps_with_crash != 0)
     UMA_HISTOGRAM_COUNTS("Chrome.BrowserDumpsWithCrash", dumps_with_crash);
   if (dumps_with_no_crash != 0)
     UMA_HISTOGRAM_COUNTS("Chrome.BrowserDumpsWithNoCrash", dumps_with_no_crash);
   int total_dumps = dumps_with_crash + dumps_with_no_crash;
   if (total_dumps != 0)
     UMA_HISTOGRAM_COUNTS("Chrome.BrowserCrashDumpAttempts", total_dumps);
 }
 #endif  // defined(OS_WIN)