Correctly report extension renderer launch counts in system profile.

components/metrics/stability_metrics_helper.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 "components/metrics/stability_metrics_helper.h"
 
 #include <stdint.h>
 
 #include <vector>
 
@@ skipping 104 matching lines @@
     local_state_->SetInteger(
         prefs::kStabilityExtensionRendererFailedLaunchCount, 0);
   }
 
   count = local_state_->GetInteger(prefs::kStabilityRendererHangCount);
   if (count) {
     stability_proto->set_renderer_hang_count(count);
     local_state_->SetInteger(prefs::kStabilityRendererHangCount, 0);
   }
 
-  count = local_state_->GetInteger(prefs::kStabilityRendererLaunchCount);
+  count =
+      local_state_->GetInteger(prefs::kStabilityExtensionRendererLaunchCount);
   if (count) {
-    stability_proto->set_renderer_launch_count(count);
-    local_state_->SetInteger(prefs::kStabilityRendererLaunchCount, 0);
+    stability_proto->set_extension_renderer_launch_count(count);
+    local_state_->SetInteger(prefs::kStabilityExtensionRendererLaunchCount, 0);
   }
 }
 
 void StabilityMetricsHelper::ClearSavedStabilityMetrics() {
   // Clear all the prefs used in this class in UMA reports (which doesn't
   // include |kUninstallMetricsPageLoadCount| as it's not sent up by UMA).
   local_state_->SetInteger(prefs::kStabilityChildProcessCrashCount, 0);
   local_state_->SetInteger(prefs::kStabilityExtensionRendererCrashCount, 0);
   local_state_->SetInteger(prefs::kStabilityExtensionRendererFailedLaunchCount,
                            0);
@@ skipping 99 matching lines @@
 void StabilityMetricsHelper::IncrementLongPrefsValue(const char* path) {
   int64_t value = local_state_->GetInt64(path);
   local_state_->SetInt64(path, value + 1);
 }
 
 void StabilityMetricsHelper::LogRendererHang() {
   IncrementPrefValue(prefs::kStabilityRendererHangCount);
 }
 
 }  // namespace metrics