Fix leak in FirstWebContentsProfiler introduced by special recording for deprecated v1 startup stat…

chrome/browser/metrics/first_web_contents_profiler.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.
 
 #if !defined(OS_ANDROID)
 
 #include "chrome/browser/metrics/first_web_contents_profiler.h"
 
 #include <string>
 
@@ skipping 152 matching lines @@
     if (!collected_paint_metric_) {
       UMA_HISTOGRAM_ENUMERATION("Startup.FirstWebContents.FinishReason_NoPaint",
                                 finish_reason, FinishReason::ENUM_MAX);
     }
     if (!collected_load_metric_) {
       UMA_HISTOGRAM_ENUMERATION("Startup.FirstWebContents.FinishReason_NoLoad",
                                 finish_reason, FinishReason::ENUM_MAX);
     }
     finished_ = true;
   }
+
+  // Continue recording deprecated v1 stats (see |finished_|) except in
+  // scenarios where stats collection was already being abandonned previously.
   // TODO(gab): Delete right away when getting rid of |finished_|.
-  if (IsFinishedCollectingMetrics())
+  if (IsFinishedCollectingMetrics() ||
+      finish_reason == FinishReason::ABANDON_CONTENT_DESTROYED ||
+      finish_reason == FinishReason::ABANDON_BLOCKING_UI) {
     delegate_->ProfilerFinishedCollectingMetrics();
+  }
 }
 
 #endif  // !defined(OS_ANDROID)