Try to fix botched merge of the revert in r510247.

TBR=haraken@chromium.org
BUG=757374, 776334
NOTRY=true
NOTREECHECKS=true
NOPRESUBMIT=true

Change-Id: I36c3f44119b547c8c85efa7a03c66357c3f1a118
Reviewed-on: https://chromium-review.googlesource.com/729302
Commit-Queue: Dirk Pranke <dpranke@chromium.org>
Reviewed-by: Dirk Pranke <dpranke@chromium.org>
Cr-Commit-Position: refs/heads/master@{#510248}

third_party/WebKit/Source/core/dom/Document.cpp

@@ -7234,15 +7234,6 @@ void Document::RecordDeferredLoadReason(WouldLoadReason reason) {
   would_load_reason_ = reason;
 }
 
-void Document::RecordUkmOutliveTimeAfterShutdown(int outlive_time_count) {
-  if (!ukm_recorder_)
-    return;
-
-  ukm::builders::Document_OutliveTimeAfterShutdown(ukm_source_id_)
-      .SetGCCount(outlive_time_count)
-      .Record(ukm_recorder_.get());
-}
-
 void Document::TraceWrappers(const ScriptWrappableVisitor* visitor) const {
   // node_lists_ are traced in their corresponding NodeListsNodeData, keeping
   // them only alive for live nodes. Otherwise we would keep lists of dead