Remove "from all browsers" memory details mode

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 <stddef.h>
 
 #include <vector>
 
@@ skipping 536 matching lines @@
   // then call OnHistogramSynchronizationDone to continue processing.
   DCHECK(!waiting_for_collect_final_metrics_step_);
   waiting_for_collect_final_metrics_step_ = true;
 
   base::Closure callback =
       base::Bind(&ChromeMetricsServiceClient::OnMemoryDetailCollectionDone,
                  weak_ptr_factory_.GetWeakPtr());
 
   scoped_refptr<MetricsMemoryDetails> details(
       new MetricsMemoryDetails(callback, &memory_growth_tracker_));
-  details->StartFetch(MemoryDetails::FROM_CHROME_ONLY);
+  details->StartFetch();
 }
 
 void ChromeMetricsServiceClient::OnMemoryDetailCollectionDone() {
   DCHECK(thread_checker_.CalledOnValidThread());
 
   // This function should only be called as the callback from an ansynchronous
   // step.
   DCHECK(waiting_for_collect_final_metrics_step_);
 
   // Create a callback_task for OnHistogramSynchronizationDone.
@@ skipping 109 matching lines @@
       break;
 
     default:
       NOTREACHED();
   }
 }
 
 void ChromeMetricsServiceClient::OnURLOpenedFromOmnibox(OmniboxLog* log) {
   metrics_service_->OnApplicationNotIdle();
 }