Remove Enumeration Histograms from the Blink Platform API.

third_party/WebKit/Source/core/fetch/FontResource.cpp

 /*
  * Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2009 Torch Mobile, Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 11 matching lines @@
  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "core/fetch/FontResource.h"
 
 #include "core/fetch/FetchRequest.h"
 #include "core/fetch/ResourceClientWalker.h"
 #include "core/fetch/ResourceFetcher.h"
+#include "platform/Histogram.h"
 #include "platform/SharedBuffer.h"
 #include "platform/fonts/FontCustomPlatformData.h"
 #include "platform/fonts/FontPlatformData.h"
-#include "public/platform/Platform.h"
 #include "wtf/CurrentTime.h"
 
 namespace blink {
 
 // Durations of font-display periods.
 // https://tabatkins.github.io/specs/css-font-display/#font-display-desc
 static const double fontLoadWaitShortLimitSec = 0.1;
 static const double fontLoadWaitLongLimitSec = 3.0;
 
 enum FontPackageFormat {
@@ skipping 13 matching lines @@
     const char* data = buffer->data();
     if (data[0] == 'w' && data[1] == 'O' && data[2] == 'F' && data[3] == 'F')
         return PackageFormatWOFF;
     if (data[0] == 'w' && data[1] == 'O' && data[2] == 'F' && data[3] == '2')
         return PackageFormatWOFF2;
     return PackageFormatSFNT;
 }
 
 static void recordPackageFormatHistogram(FontPackageFormat format)
 {
-    Platform::current()->histogramEnumeration("WebFont.PackageFormat", format, PackageFormatEnumMax);
+    DEFINE_THREAD_SAFE_STATIC_LOCAL(EnumerationHistogram, packageFormatHistogram, new EnumerationHistogram("WebFont.PackageFormat", PackageFormatEnumMax));
+    packageFormatHistogram.count(format);
 }
 
 ResourcePtr<FontResource> FontResource::fetch(FetchRequest& request, ResourceFetcher* fetcher)
 {
     ASSERT(request.resourceRequest().frameType() == WebURLRequest::FrameTypeNone);
     request.mutableResourceRequest().setRequestContext(WebURLRequest::RequestContextFont);
     return toFontResource(fetcher->requestResource(request, FontResourceFactory()));
 }
 
 FontResource::FontResource(const ResourceRequest& resourceRequest)
@@ skipping 114 matching lines @@
 void FontResource::checkNotify()
 {
     m_fontLoadShortLimitTimer.stop();
     m_fontLoadLongLimitTimer.stop();
     ResourceClientWalker<FontResourceClient> w(m_clients);
     while (FontResourceClient* c = w.next())
         c->fontLoaded(this);
 }
 
 } // namespace blink