Remove Enumeration Histograms from the Blink Platform API.

content/child/blink_platform_impl.cc

Index: content/child/blink_platform_impl.cc
diff --git a/content/child/blink_platform_impl.cc b/content/child/blink_platform_impl.cc
index 4bb755a2ae1e580e13b9044d648765ae4c364a3f..fa8c782e2f219861316dfa891bda0d0c866b907c 100644
--- a/content/child/blink_platform_impl.cc
+++ b/content/child/blink_platform_impl.cc
@@ -14,7 +14,6 @@
 #include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/singleton.h"
-#include "base/metrics/histogram.h"
 #include "base/rand_util.h"
 #include "base/single_thread_task_runner.h"
 #include "base/strings/string_number_conversions.h"
@@ -579,17 +578,6 @@ blink::WebWaitableEvent* BlinkPlatformImpl::waitMultipleEvents(
   return web_events[idx];
 }
 
-void BlinkPlatformImpl::histogramEnumeration(
-    const char* name, int sample, int boundary_value) {
-  // Copied from histogram macro, but without the static variable caching
-  // the histogram because name is dynamic.
-  base::HistogramBase* counter =
-      base::LinearHistogram::FactoryGet(name, 1, boundary_value,
-          boundary_value + 1, base::HistogramBase::kUmaTargetedHistogramFlag);
-  DCHECK_EQ(name, counter->histogram_name());
-  counter->Add(sample);
-}
-
 void BlinkPlatformImpl::registerMemoryDumpProvider(
     blink::WebMemoryDumpProvider* wmdp, const char* name) {
   WebMemoryDumpProviderAdapter* wmdp_adapter =