Introduce NavigatorWebDriver interface

content/browser/renderer_host/render_view_host_impl.cc

 // Copyright (c) 2012 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 "content/browser/renderer_host/render_view_host_impl.h"
 
 #include <set>
 #include <string>
 #include <utility>
 #include <vector>
@@ skipping 89 matching lines @@
 #include "ui/gfx/geometry/dip_util.h"
 #include "ui/gfx/platform_font_win.h"
 #endif
 
 using base::TimeDelta;
 using blink::WebConsoleMessage;
 using blink::WebInputEvent;
 using blink::WebMediaPlayerAction;
 using blink::WebPluginAction;
 
+const char kEnableAutomation[] = "enable-automation";

[bokan, 2017/05/19 16:43:23]

This should go in content_switches.cc/h

+
 namespace content {
 namespace {
 
 void GetPlatformSpecificPrefs(RendererPreferences* prefs) {
 #if defined(OS_WIN)
   NONCLIENTMETRICS_XP metrics = {0};
   base::win::GetNonClientMetrics(&metrics);
 
   prefs->caption_font_family_name = metrics.lfCaptionFont.lfFaceName;
   prefs->caption_font_height = gfx::PlatformFontWin::GetFontSize(
@@ skipping 427 matching lines @@
   prefs.user_gesture_required_for_presentation = !command_line.HasSwitch(
       switches::kDisableGestureRequirementForPresentation);
 
   if (delegate_ && delegate_->HideDownloadUI())
     prefs.hide_download_ui = true;
 
   // `media_controls_enabled` is `true` by default.
   if (delegate_ && delegate_->HasPersistentVideo())
     prefs.media_controls_enabled = false;
 
+  if (command_line.HasSwitch(kEnableAutomation))
+    prefs.automation_controlled = true;
+
+  if (command_line.HasSwitch(switches::kHeadless))
+    prefs.headless = true;

[bokan, 2017/05/19 16:43:23]

Would it make sense to just set automation_controller = true if kHeadless is on
the command line, rather than adding a separate setting? It seems like you just
want headless to imply automation_controlled.

+
   prefs.background_video_track_optimization_enabled =
       base::FeatureList::IsEnabled(media::kBackgroundVideoTrackOptimization);
 
   // TODO(servolk, asvitkine): Query the value directly when it is available in
   // the renderer process. See https://crbug.com/681160.
   prefs.enable_instant_source_buffer_gc =
       variations::GetVariationParamByFeatureAsBool(
           media::kMemoryPressureBasedSourceBufferGC,
           "enable_instant_source_buffer_gc", false);
 
@@ skipping 394 matching lines @@
 }
 
 void RenderViewHostImpl::ClosePageTimeout() {
   if (delegate_->ShouldIgnoreUnresponsiveRenderer())
     return;
 
   ClosePageIgnoringUnloadEvents();
 }
 
 }  // namespace content