Expose presence of devtools support on a role-based interface

java/client/src/org/openqa/selenium/chromium/ChromiumDriver.java

@@ -24,6 +24,7 @@
 import org.openqa.selenium.WebDriverException;
 import org.openqa.selenium.devtools.Connection;
 import org.openqa.selenium.devtools.DevTools;
+import org.openqa.selenium.devtools.HasDevTools;
 import org.openqa.selenium.html5.LocalStorage;
 import org.openqa.selenium.html5.Location;
 import org.openqa.selenium.html5.LocationContext;
@@ -61,7 +62,7 @@
  * to the appropriate interface.
  */
 public class ChromiumDriver extends RemoteWebDriver
-    implements LocationContext, WebStorage, HasTouchScreen, NetworkConnection {
+    implements HasDevTools, HasTouchScreen, LocationContext, NetworkConnection, WebStorage {
 
   private final RemoteLocationContext locationContext;
   private final RemoteWebStorage webStorage;
@@ -152,6 +153,7 @@ public Map<String, Object> executeCdpCommand(String commandName, Map<String, Obj
     return ImmutableMap.copyOf(toReturn);
   }
 
+  @Override
   public DevTools getDevTools() {
     return connection.map(DevTools::new)
         .orElseThrow(() -> new WebDriverException("Unable to create DevTools connection"));

java/client/src/org/openqa/selenium/devtools/BUILD.bazel

@@ -6,6 +6,7 @@ java_library(
         "//java/client/src/org/openqa/selenium/chromium:__pkg__",
         "//java/client/src/org/openqa/selenium/edge:__pkg__",
         "//java/client/src/org/openqa/selenium/remote:__pkg__",
+        "//java/client/test/org/openqa/selenium/devtools:__pkg__",
     ],
     deps = [
         "//java/client/src/org/openqa/selenium:core",

java/client/src/org/openqa/selenium/devtools/HasDevTools.java

@@ -0,0 +1,24 @@
+// Licensed to the Software Freedom Conservancy (SFC) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The SFC licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+package org.openqa.selenium.devtools;
+
+public interface HasDevTools {
+
+  DevTools getDevTools();
+
+}