DevTools: the sources debug toolbar buttons should not be drag targets

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 909d19a2339d9275e2f525ce8e6c7852100c6a44..ab068da5d57c18b73663557f1bf5332018fa6462 100644
--- a/third_party/WebKit/Source/devtools/front_end/ui/Toolbar.js
+++ b/third_party/WebKit/Source/devtools/front_end/ui/Toolbar.js
@@ -194,6 +194,13 @@ UI.Toolbar = class {
   }
 
   /**
+   * @return {!Element}
+   */
+  contentElement() {

[pfeldman, 2017/06/01 21:26:56]

Let's be more specific and name it gripElementForResize() in order to maintain
illusion of shadow encapsulation.

[luoe, 2017/06/01 21:32:07]

Done, good idea.

+    return this._contentElement;
+  }
+
+  /**
    * @param {boolean=} reverse
    * @param {boolean=} growVertically
    */