DevTools: Fix timeline overview flickering

third_party/WebKit/Source/devtools/front_end/perf_ui/TimelineOverviewPane.js

Index: third_party/WebKit/Source/devtools/front_end/perf_ui/TimelineOverviewPane.js
diff --git a/third_party/WebKit/Source/devtools/front_end/perf_ui/TimelineOverviewPane.js b/third_party/WebKit/Source/devtools/front_end/perf_ui/TimelineOverviewPane.js
index 554115671313f366f7fc702a342f1887666ed4c3..1b0c530b9e7cec183f8b778050599ce4e3287747 100644
--- a/third_party/WebKit/Source/devtools/front_end/perf_ui/TimelineOverviewPane.js
+++ b/third_party/WebKit/Source/devtools/front_end/perf_ui/TimelineOverviewPane.js
@@ -480,8 +480,9 @@ PerfUI.TimelineOverviewPane.OverviewInfo = class {
     this._anchorElement = anchor;
     this._glassPane = new UI.GlassPane();
     this._glassPane.setBlockPointerEvents(false);
-    this._glassPane.setMarginBehavior(UI.GlassPane.MarginBehavior.NoMargin);
+    this._glassPane.setMarginBehavior(UI.GlassPane.MarginBehavior.Arrow);
     this._glassPane.setSizeBehavior(UI.GlassPane.SizeBehavior.MeasureContent);
+    this._glassPane.contentElement.style.setProperty('pointer-events', 'none');

[dgozman, 2017/04/21 23:04:05]

Why this? You should set pointer-events on your content instead.

     this._element =
         UI.createShadowRootWithCoreStyles(this._glassPane.contentElement, 'perf_ui/timelineOverviewInfo.css')
             .createChild('div', 'overview-info');