Suppress text dump of JavaScript modal dialog messages in testharness.js tests

components/test_runner/test_runner.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef COMPONENTS_TEST_RUNNER_TEST_RUNNER_H_
 #define COMPONENTS_TEST_RUNNER_TEST_RUNNER_H_
 
 #include <stdint.h>
 
 #include <deque>
@@ skipping 155 matching lines @@
   void setDragImage(const blink::WebImage& drag_image);
   bool shouldDumpNavigationPolicy() const;
 
   midi::mojom::Result midiAccessorResult();
 
   // Methods used by MockColorChooser:
   void DidOpenChooser();
   void DidCloseChooser();
 
   bool ShouldDumpConsoleMessages() const;
+  bool ShouldDumpJavaScriptDialogs() const;
 
   blink::WebEffectiveConnectionType effective_connection_type() const {
     return effective_connection_type_;
   }
 
   // A single item in the work queue.
   class WorkItem {
    public:
     virtual ~WorkItem() {}
 
@@ skipping 279 matching lines @@
   void DumpDragImage();
 
   // Sets a flag that tells the WebViewTestProxy to dump the default navigation
   // policy passed to the decidePolicyForNavigation callback.
   void DumpNavigationPolicy();
 
   // Controls whether console messages produced by the page are dumped
   // to test output.
   void SetDumpConsoleMessages(bool value);
 
+  // Controls whether JavaScript dialogs such as alert() are dumped to test
+  // output.
+  void SetDumpJavaScriptDialogs(bool value);
+
   // Overrides the NetworkQualityEstimator's estimated network type. If |type|
   // is TypeUnknown the NQE's value is used. Be sure to call this with
   // TypeUnknown at the end of your test if you use this.
   void SetEffectiveConnectionType(
       blink::WebEffectiveConnectionType connection_type);
 
   // Controls whether the mock spell checker is enabled.
   void SetMockSpellCheckerEnabled(bool enabled);
 
   ///////////////////////////////////////////////////////////////////////////
@@ skipping 177 matching lines @@
   blink::WebEffectiveConnectionType effective_connection_type_;
 
   base::WeakPtrFactory<TestRunner> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(TestRunner);
 };
 
 }  // namespace test_runner
 
 #endif  // COMPONENTS_TEST_RUNNER_TEST_RUNNER_H_