DevTools: Introduce ARIAUtils

third_party/WebKit/Source/devtools/front_end/ui/Toolbar.js

Index: third_party/WebKit/Source/devtools/front_end/ui/Toolbar.js
diff --git a/third_party/WebKit/Source/devtools/front_end/ui/Toolbar.js b/third_party/WebKit/Source/devtools/front_end/ui/Toolbar.js
index 8e6f552001bba2f712cf2fb3412318eddf459255..bb9796815163d4a6fec25c7e684aeed8f779706c 100644
--- a/third_party/WebKit/Source/devtools/front_end/ui/Toolbar.js
+++ b/third_party/WebKit/Source/devtools/front_end/ui/Toolbar.js
@@ -603,6 +603,7 @@ UI.ToolbarToggle = class extends UI.ToolbarButton {
     this._untoggledGlyph = glyph;
     this._toggledGlyph = toggledGlyph;
     this.element.classList.add('toolbar-state-off');
+    UI.ARIAUtils.setPressed(this.element, false);
   }
 
   /**
@@ -621,6 +622,7 @@ UI.ToolbarToggle = class extends UI.ToolbarButton {
     this._toggled = toggled;
     this.element.classList.toggle('toolbar-state-on', toggled);
     this.element.classList.toggle('toolbar-state-off', !toggled);
+    UI.ARIAUtils.setPressed(this.element, toggled);
     if (this._toggledGlyph && this._untoggledGlyph)
       this.setGlyph(toggled ? this._toggledGlyph : this._untoggledGlyph);
   }