Fix broken MainThreadScrollingReason DCHECK.

cc/trees/layer_tree_host_impl.cc

 // Copyright 2011 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 "cc/trees/layer_tree_host_impl.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
@@ skipping 2482 matching lines @@
   // Walk up the hierarchy and look for a scrollable layer.
   LayerImpl* potentially_scrolling_layer_impl = NULL;
   for (; layer_impl; layer_impl = NextLayerInScrollOrder(layer_impl)) {
     // The content layer can also block attempts to scroll outside the main
     // thread.
     ScrollStatus status =
         layer_impl->TryScroll(device_viewport_point, type, block_mode);
     if (status.thread == SCROLL_ON_MAIN_THREAD) {
       if (layer_impl->should_scroll_on_main_thread()) {
         DCHECK_LE(status.main_thread_scrolling_reasons,
-                  MainThreadScrollingReason::kMaxNonTransientScrollingReason);
+                  MainThreadScrollingReason::kMaxNonTransientScrollingReasons);
       } else {
         DCHECK_GT(status.main_thread_scrolling_reasons,
-                  MainThreadScrollingReason::kMaxNonTransientScrollingReason);
+                  MainThreadScrollingReason::kMaxNonTransientScrollingReasons);
       }
 
       *scroll_on_main_thread = true;
       *main_thread_scrolling_reasons = status.main_thread_scrolling_reasons;
       return NULL;
     }
 
     LayerImpl* scroll_layer_impl = FindScrollLayerForContentLayer(layer_impl);
     if (!scroll_layer_impl)
       continue;
 
     status =
         scroll_layer_impl->TryScroll(device_viewport_point, type, block_mode);
 
     // If any layer wants to divert the scroll event to the main thread, abort.
     if (status.thread == SCROLL_ON_MAIN_THREAD) {
       if (layer_impl->should_scroll_on_main_thread()) {
         DCHECK_LE(status.main_thread_scrolling_reasons,
-                  MainThreadScrollingReason::kMaxNonTransientScrollingReason);
+                  MainThreadScrollingReason::kMaxNonTransientScrollingReasons);
       } else {
         DCHECK_GT(status.main_thread_scrolling_reasons,
-                  MainThreadScrollingReason::kMaxNonTransientScrollingReason);
+                  MainThreadScrollingReason::kMaxNonTransientScrollingReasons);
       }
 
       *scroll_on_main_thread = true;
       *main_thread_scrolling_reasons = status.main_thread_scrolling_reasons;
       return NULL;
     }
 
     if (optional_has_ancestor_scroll_handler &&
         scroll_layer_impl->have_scroll_event_handlers())
       *optional_has_ancestor_scroll_handler = true;
@@ skipping 1380 matching lines @@
   return task_runner_provider_->HasImplThread();
 }
 
 bool LayerTreeHostImpl::CommitToActiveTree() const {
   // In single threaded mode we skip the pending tree and commit directly to the
   // active tree.
   return !task_runner_provider_->HasImplThread();
 }
 
 }  // namespace cc