Removing unused macros in RenderWidgetHostLatencyTracker.

content/browser/renderer_host/input/render_widget_host_latency_tracker.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/browser/renderer_host/input/render_widget_host_latency_tracker.h"
 
 #include <stddef.h>
 
 #include "base/logging.h"
 #include "base/metrics/histogram_functions.h"
@@ skipping 64 matching lines @@
                                  latency, device_scale_factor);
   }
 }
 
 // Check valid timing for start and end latency components.
 #define CONFIRM_VALID_TIMING(start, end)     \
   DCHECK(!start.first_event_time.is_null()); \
   DCHECK(!end.last_event_time.is_null());    \
   DCHECK_GE(end.last_event_time, start.first_event_time);
 
-// Long scroll latency component that is mostly under 200ms.
-#define UMA_HISTOGRAM_SCROLL_LATENCY_LONG(name, start, end)             \
-  CONFIRM_VALID_TIMING(start, end);                                     \
-  UMA_HISTOGRAM_CUSTOM_COUNTS(                                          \
-      name, (end.event_time - start.event_time).InMicroseconds(), 1000, \
-      200000, 50)
-
-// Short scroll latency component that is mostly under 50ms.
-#define UMA_HISTOGRAM_SCROLL_LATENCY_SHORT(name, start, end)                \
-  CONFIRM_VALID_TIMING(start, end);                                         \
-  UMA_HISTOGRAM_CUSTOM_COUNTS(                                              \
-      name, (end.event_time - start.event_time).InMicroseconds(), 1, 50000, \
-      50)
-
 // Event latency that is mostly under 1 second. We should only use 100 buckets
 // when needed.
 #define UMA_HISTOGRAM_INPUT_LATENCY_HIGH_RESOLUTION_MICROSECONDS(name, start, \
                                                                  end)         \
   CONFIRM_VALID_TIMING(start, end)                                            \
   base::UmaHistogramCustomCounts(                                             \
       name, (end.last_event_time - start.first_event_time).InMicroseconds(),  \
       1, 1000000, 100);
 
 #define UMA_HISTOGRAM_INPUT_LATENCY_MILLISECONDS(name, start, end)           \
@@ skipping 514 matching lines @@
         latency, is_running_navigation_hint_task);
   }
 }
 
 void RenderWidgetHostLatencyTracker::SetDelegate(
     RenderWidgetHostDelegate* delegate) {
   render_widget_host_delegate_ = delegate;
 }
 
 }  // namespace content