Remove Enumeration Histograms from the Blink Platform API.

third_party/WebKit/Source/web/WebViewImpl.cpp

Index: third_party/WebKit/Source/web/WebViewImpl.cpp
diff --git a/third_party/WebKit/Source/web/WebViewImpl.cpp b/third_party/WebKit/Source/web/WebViewImpl.cpp
index f28b4621f5b1090a71513ffa96a6c843aa2b0cf3..914905b00ef1b49697740998e8d9412472c13ac7 100644
--- a/third_party/WebKit/Source/web/WebViewImpl.cpp
+++ b/third_party/WebKit/Source/web/WebViewImpl.cpp
@@ -4055,10 +4055,13 @@ void WebViewImpl::didFinishMainFrameDocumentLoad()
         const Document& document = *mainFrameImpl()->frame()->document();
 
         // "AutodetectEncoding.Attempted" is of boolean type - either 0 or 1. Use 2 for the boundary value.
-        Platform::current()->histogramEnumeration("AutodetectEncoding.Attempted", document.attemptedToDetermineEncodingFromContentSniffing(), 2);
+        DEFINE_STATIC_LOCAL(EnumerationHistogram, autoDetectAttemptedHistogram, ("AutodetectEncoding.Attempted", 2));
+        autoDetectAttemptedHistogram.count(document.attemptedToDetermineEncodingFromContentSniffing());
         if (document.encodingWasDetectedFromContentSniffing()) {
             int encodingId = encodingToUmaId(document.encoding());
-            Platform::current()->histogramEnumeration("AutodetectEncoding.Detected", encodingId, WTF_ARRAY_LENGTH(kEncodingNames) + 1);
+
+            DEFINE_STATIC_LOCAL(EnumerationHistogram, autoDetectDetectedHistogram, ("AutodetectEncoding.Detected", WTF_ARRAY_LENGTH(kEncodingNames) + 1));
+            autoDetectDetectedHistogram.count(encodingId);
         }
     }
 #endif