cc: Force an update on tile size after viewport resize

cc/trees/layer_tree_host_impl.cc

Index: cc/trees/layer_tree_host_impl.cc
diff --git a/cc/trees/layer_tree_host_impl.cc b/cc/trees/layer_tree_host_impl.cc
index 0bd757d1d3ff3a7c5a02030c9a5b8a883e801e89..ae79c59d14e62e04d9fe0abfb597cf5c1f3f1192 100644
--- a/cc/trees/layer_tree_host_impl.cc
+++ b/cc/trees/layer_tree_host_impl.cc
@@ -308,8 +308,8 @@ void LayerTreeHostImpl::CommitComplete() {
     // more lazily when needed prior to drawing.  Because invalidations may
     // be coming from the main thread, it's safe to do an update for lcd text
     // at this point and see if lcd text needs to be disabled on any layers.
-    bool update_lcd_text = true;
-    sync_tree()->UpdateDrawProperties(update_lcd_text);
+    bool first_update_after_commit = true;
+    sync_tree()->UpdateDrawProperties(first_update_after_commit);
     // Start working on newly created tiles immediately if needed.
     if (tile_manager_ && tile_priorities_dirty_)
       PrepareTiles();
@@ -1048,8 +1048,8 @@ DrawResult LayerTreeHostImpl::PrepareToDraw(FrameData* frame) {
   UMA_HISTOGRAM_CUSTOM_COUNTS(
       "Compositing.NumActiveLayers", active_tree_->NumLayers(), 1, 400, 20);
 
-  bool update_lcd_text = false;
-  bool ok = active_tree_->UpdateDrawProperties(update_lcd_text);
+  bool first_update_after_commit = false;
+  bool ok = active_tree_->UpdateDrawProperties(first_update_after_commit);
   DCHECK(ok) << "UpdateDrawProperties failed during draw";
 
   // This will cause NotifyTileStateChanged() to be called for any visible tiles