Index: chrome/browser/chrome_browser_field_trials.cc |
diff --git a/chrome/browser/chrome_browser_field_trials.cc b/chrome/browser/chrome_browser_field_trials.cc |
index 648167695f6b70b9ca8b5c986e7c773d7d08c2ca..a839e144222bd171dda462a3f4fb5ba9f7c73f58 100644 |
--- a/chrome/browser/chrome_browser_field_trials.cc |
+++ b/chrome/browser/chrome_browser_field_trials.cc |
@@ -26,19 +26,14 @@ |
namespace { |
// Check for feature enabling the use of persistent histogram storage and |
-// create an appropriate allocator for such if so. |
+// enable the global allocator if so. |
void InstantiatePersistentHistograms() { |
if (base::FeatureList::IsEnabled(base::kPersistentHistogramsFeature)) { |
- const char kAllocatorName[] = "BrowserMetrics"; |
- // Create persistent/shared memory and allow histograms to be stored in it. |
- // Memory that is not actualy used won't be physically mapped by the system. |
- // BrowserMetrics usage peaked around 95% of 2MiB as of 2016-02-20. |
- base::GlobalHistogramAllocator::CreateWithLocalMemory( |
- 3 << 20, // 3 MiB |
- 0x935DDD43, // SHA1(BrowserMetrics) |
- kAllocatorName); |
- base::GlobalHistogramAllocator::Get()->CreateTrackingHistograms( |
- kAllocatorName); |
+ base::GlobalHistogramAllocator::Enable(); |
+ base::GlobalHistogramAllocator* allocator = |
+ base::GlobalHistogramAllocator::Get(); |
+ DCHECK(allocator); // Should have been created during startup. |
+ allocator->CreateTrackingHistograms(allocator->Name()); |
} |
} |