Remove custom counts histogram from the blink API.

content/child/blink_platform_impl.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 "content/child/blink_platform_impl.h"
 
 #include <math.h>
 
 #include <vector>
 
@@ skipping 561 matching lines @@
 blink::WebWaitableEvent* BlinkPlatformImpl::waitMultipleEvents(
     const blink::WebVector<blink::WebWaitableEvent*>& web_events) {
   std::vector<base::WaitableEvent*> events;
   for (size_t i = 0; i < web_events.size(); ++i)
     events.push_back(static_cast<WebWaitableEventImpl*>(web_events[i])->impl());
   size_t idx = base::WaitableEvent::WaitMany(events.data(), events.size());
   DCHECK_LT(idx, web_events.size());
   return web_events[idx];
 }
 
-void BlinkPlatformImpl::histogramCustomCounts(
-    const char* name, int sample, int min, int max, int bucket_count) {
-  // Copied from histogram macro, but without the static variable caching
-  // the histogram because name is dynamic.
-  base::HistogramBase* counter =
-      base::Histogram::FactoryGet(name, min, max, bucket_count,
-          base::HistogramBase::kUmaTargetedHistogramFlag);
-  DCHECK_EQ(name, counter->histogram_name());
-  counter->Add(sample);
-}
-
 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);
 }
@@ skipping 595 matching lines @@
   return WebString::fromUTF8(ui::KeycodeConverter::DomKeyToKeyString(
       static_cast<ui::DomKey>(dom_key)));
 }
 
 int BlinkPlatformImpl::domKeyEnumFromString(const WebString& key_string) {
   return static_cast<int>(
       ui::KeycodeConverter::KeyStringToDomKey(key_string.utf8()));
 }
 
 }  // namespace content