Move enable extensions define to a build flag.

chrome/browser/metrics/chrome_stability_metrics_provider.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_stability_metrics_provider.h"
 
 #include <vector>
 
 #include "base/logging.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/metrics/sparse_histogram.h"
 #include "build/build_config.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "content/public/browser/child_process_data.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/render_process_host.h"
+#include "extensions/features/features.h"
 
-#if defined(ENABLE_EXTENSIONS)
+#if BUILDFLAG(ENABLE_EXTENSIONS)
 #include "extensions/browser/process_map.h"
 #endif
 
 #if defined(ENABLE_PLUGINS)
 #include "chrome/browser/metrics/plugin_metrics_provider.h"
 #endif
 
 #if defined(OS_WIN)
 #include <windows.h>  // Needed for STATUS_* codes
 #include "chrome/common/metrics_constants_util_win.h"
@@ skipping 45 matching lines @@
     case content::NOTIFICATION_LOAD_START: {
       helper_.LogLoadStarted();
       break;
     }
 
     case content::NOTIFICATION_RENDERER_PROCESS_CLOSED: {
       content::RenderProcessHost::RendererClosedDetails* process_details =
           content::Details<content::RenderProcessHost::RendererClosedDetails>(
               details).ptr();
       bool was_extension_process = false;
-#if defined(ENABLE_EXTENSIONS)
+#if BUILDFLAG(ENABLE_EXTENSIONS)
       content::RenderProcessHost* host =
           content::Source<content::RenderProcessHost>(source).ptr();
       if (extensions::ProcessMap::Get(host->GetBrowserContext())
               ->Contains(host->GetID())) {
         was_extension_process = true;
       }
 #endif
       helper_.LogRendererCrash(was_extension_process, process_details->status,
                                process_details->exit_code);
       break;
     }
 
     case content::NOTIFICATION_RENDER_WIDGET_HOST_HANG:
       helper_.LogRendererHang();
       break;
 
     case content::NOTIFICATION_RENDERER_PROCESS_CREATED: {
       bool was_extension_process = false;
-#if defined(ENABLE_EXTENSIONS)
+#if BUILDFLAG(ENABLE_EXTENSIONS)
       content::RenderProcessHost* host =
           content::Source<content::RenderProcessHost>(source).ptr();
       if (extensions::ProcessMap::Get(host->GetBrowserContext())
               ->Contains(host->GetID())) {
         was_extension_process = true;
       }
 #endif
       helper_.LogRendererLaunched(was_extension_process);
       break;
     }
 
     default:
       NOTREACHED();
       break;
   }
 }
 
 void ChromeStabilityMetricsProvider::BrowserChildProcessCrashed(
     const content::ChildProcessData& data,
     int exit_code) {
 #if defined(ENABLE_PLUGINS)
   // Exclude plugin crashes from the count below because we report them via
   // a separate UMA metric.
   if (PluginMetricsProvider::IsPluginProcess(data.process_type))
     return;
 #endif
 
   helper_.BrowserChildProcessCrashed();
 }