Adding logging of offstore extensions state to user metrics.

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 263 matching lines @@
 #else
   NOTREACHED();
 #endif  // defined(ENABLE_PLUGINS)
 }
 
 void ChromeMetricsServiceClient::Initialize() {
   metrics_service_.reset(new MetricsService(
       metrics_state_manager_, this, g_browser_process->local_state()));
 
   // Register metrics providers.
+#if defined(ENABLE_EXTENSIONS)

[Alexei Svitkine (slow), 2014/08/13 20:30:30]

Can you ifdef the header inclusion too?

[jwd, 2014/08/13 20:36:32]

Done.

   metrics_service_->RegisterMetricsProvider(
       scoped_ptr<metrics::MetricsProvider>(
           new ExtensionsMetricsProvider(metrics_state_manager_)));
+#endif
   metrics_service_->RegisterMetricsProvider(
       scoped_ptr<metrics::MetricsProvider>(new NetworkMetricsProvider));
   metrics_service_->RegisterMetricsProvider(
       scoped_ptr<metrics::MetricsProvider>(new OmniboxMetricsProvider));
   metrics_service_->RegisterMetricsProvider(
       scoped_ptr<metrics::MetricsProvider>(new ChromeStabilityMetricsProvider));
   metrics_service_->RegisterMetricsProvider(
       scoped_ptr<metrics::MetricsProvider>(new GPUMetricsProvider()));
   profiler_metrics_provider_ = new ProfilerMetricsProvider;
   metrics_service_->RegisterMetricsProvider(
@@ skipping 242 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)