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

components/test_runner/web_frame_test_client.cc

 // Copyright 2016 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.
 
 #include "components/test_runner/web_frame_test_client.h"
 
 #include <memory>
 
 #include "base/logging.h"
 #include "base/strings/string_piece.h"
@@ skipping 170 matching lines @@
 
 blink::WebColorChooser* WebFrameTestClient::createColorChooser(
     blink::WebColorChooserClient* client,
     const blink::WebColor& color,
     const blink::WebVector<blink::WebColorSuggestion>& suggestions) {
   // This instance is deleted by WebCore::ColorInputType
   return new MockColorChooser(client, delegate_, test_runner());
 }
 
 void WebFrameTestClient::runModalAlertDialog(const blink::WebString& message) {
+  if (!test_runner()->ShouldDumpJavaScriptDialogs())
+    return;
   delegate_->PrintMessage(std::string("ALERT: ") + message.utf8().data() +
                           "\n");
 }
 
 bool WebFrameTestClient::runModalConfirmDialog(
     const blink::WebString& message) {
+  if (!test_runner()->ShouldDumpJavaScriptDialogs())
+    return true;
   delegate_->PrintMessage(std::string("CONFIRM: ") + message.utf8().data() +
                           "\n");
   return true;
 }
 
 bool WebFrameTestClient::runModalPromptDialog(
     const blink::WebString& message,
     const blink::WebString& default_value,
     blink::WebString* actual_value) {
+  if (!test_runner()->ShouldDumpJavaScriptDialogs())
+    return true;
   delegate_->PrintMessage(std::string("PROMPT: ") + message.utf8().data() +
                           ", default text: " + default_value.utf8().data() +
                           "\n");
   return true;
 }
 
 bool WebFrameTestClient::runModalBeforeUnloadDialog(bool is_reload) {
-  delegate_->PrintMessage(std::string("CONFIRM NAVIGATION\n"));
+  if (test_runner()->ShouldDumpJavaScriptDialogs())
+    delegate_->PrintMessage(std::string("CONFIRM NAVIGATION\n"));
   return !test_runner()->shouldStayOnPageAfterHandlingBeforeUnload();
 }
 
 blink::WebScreenOrientationClient*
 WebFrameTestClient::webScreenOrientationClient() {
   return test_runner()->getMockScreenOrientationClient();
 }
 
 void WebFrameTestClient::postAccessibilityEvent(const blink::WebAXObject& obj,
                                                 blink::WebAXEvent event) {
@@ skipping 474 matching lines @@
 blink::WebEffectiveConnectionType
 WebFrameTestClient::getEffectiveConnectionType() {
   return test_runner()->effective_connection_type();
 }
 
 TestRunner* WebFrameTestClient::test_runner() {
   return web_view_test_proxy_base_->test_interfaces()->GetTestRunner();
 }
 
 }  // namespace test_runner