DevTools: disable filters bar when switching Timeline to flame chart mode

Source/devtools/front_end/timeline/TimelinePanel.js

Index: Source/devtools/front_end/timeline/TimelinePanel.js
diff --git a/Source/devtools/front_end/timeline/TimelinePanel.js b/Source/devtools/front_end/timeline/TimelinePanel.js
index 676950fc42c3d0cd7be8860129fd912e9de552bc..fbb4829dd916a6ad4b8f13a7a3f84d8f78d15f5a 100644
--- a/Source/devtools/front_end/timeline/TimelinePanel.js
+++ b/Source/devtools/front_end/timeline/TimelinePanel.js
@@ -602,10 +602,15 @@ WebInspector.TimelinePanel.prototype = {
         else
             this._overviewControls.push(new WebInspector.TimelineEventOverview(this._model, this._uiUtils));
 
-        if (this._tracingTimelineModel && this._flameChartEnabledSetting.get())
+        if (this._tracingTimelineModel && this._flameChartEnabledSetting.get()) {
+            this._filterBar.filterButton().setEnabled(false);
+            this._filtersContainer.classList.toggle("hidden", true);
             this._addModeView(new WebInspector.TimelineFlameChart(this, this._tracingTimelineModel, this._frameModel()));
-        else
+        } else {
+            this._filterBar.filterButton().setEnabled(true);
+            this._filtersContainer.classList.toggle("hidden", !this._filterBar.filtersToggled());
             this._addModeView(this._timelineView());
+        }
 
         if (this._captureMemorySetting.get()) {
             if (!isFrameMode)  // Frame mode skews time, don't render aux overviews.