bump protocol

Author: devtools-bot

_data/tot/protocol.json

@@ -7530,6 +7530,12 @@
                             "$ref": "DOM.PseudoType",
                             "optional": true,
                             "description": "Type of a pseudo element node."
+                        },
+                        {
+                            "name": "isClickable",
+                            "type": "boolean",
+                            "optional": true,
+                            "description": "Whether this DOM node responds to mouse clicks. This includes nodes that have had click event listeners attached via JavaScript as well as anchor tags that naturally navigate when clicked."
                         }
                     ],
                     "description": "A Node in the DOM tree."

_versions/tot.html

@@ -8,7 +8,7 @@ <h2 class="heading">latest (tip-of-tree)</h2>
 
 <h5 browser>Latest <a
    href="https://chromium.googlesource.com/chromium/src/+log/master/third_party/WebKit/Source/core/inspector/browser_protocol.json">browser_protocol.json</a> version updated:</h5>
-<code browser>Date:   Thu Jun 29 15:15:18 2017 -0700
+<code browser>Date:   Fri Jun 30 08:15:16 2017 -0700
 </code>
 
 <h5 js>Latest <a