Add HeadlessFocusClient to fix document.hasFocus() issues.

headless/lib/browser/headless_web_contents_impl.cc

 // Copyright 2015 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 "headless/lib/browser/headless_web_contents_impl.h"
 
 #include <string>
 #include <utility>
 
 #include "base/bind.h"
 #include "base/json/json_writer.h"
 #include "base/memory/ptr_util.h"
 #include "base/memory/weak_ptr.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/trace_event/trace_event.h"
 #include "components/security_state/content/content_utils.h"
 #include "components/security_state/core/security_state.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/devtools_agent_host.h"
 #include "content/public/browser/navigation_handle.h"
 #include "content/public/browser/render_frame_host.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/render_view_host.h"
+#include "content/public/browser/render_widget_host.h"
+#include "content/public/browser/render_widget_host_view.h"

[Eric Seckler, 2017/02/22 09:00:04]

nit: do we still need this include?

[irisu, 2017/02/23 00:02:26]

Done.

 #include "content/public/browser/web_contents.h"
 #include "content/public/browser/web_contents_delegate.h"
 #include "content/public/common/bindings_policy.h"
 #include "content/public/common/origin_util.h"
 #include "headless/lib/browser/headless_browser_context_impl.h"
 #include "headless/lib/browser/headless_browser_impl.h"
 #include "headless/lib/browser/headless_browser_main_parts.h"
 #include "headless/lib/browser/headless_devtools_client_impl.h"
 #include "services/service_manager/public/cpp/interface_registry.h"
 
@@ skipping 56 matching lines @@
       override {
     security_state::SecurityInfo security_info;
     security_state::GetSecurityInfo(
         security_state::GetVisibleSecurityState(web_contents),
         false /* used_policy_installed_certificate */,
         base::Bind(&content::IsOriginSecure), &security_info);
     return security_state::GetSecurityStyle(security_info,
                                             security_style_explanations);
   }
 
+  void ActivateContents(content::WebContents* contents) override {
+    contents->GetRenderViewHost()->GetWidget()->Focus();
+  }
+
  private:
   HeadlessBrowserContextImpl* browser_context_;  // Not owned.
   DISALLOW_COPY_AND_ASSIGN(Delegate);
 };
 
 // static
 std::unique_ptr<HeadlessWebContentsImpl> HeadlessWebContentsImpl::Create(
     HeadlessWebContents::Builder* builder) {
   content::WebContents::CreateParams create_params(builder->browser_context_,
                                                    nullptr);
@@ skipping 184 matching lines @@
 HeadlessWebContents::Builder::MojoService::MojoService() {}
 
 HeadlessWebContents::Builder::MojoService::MojoService(
     const std::string& service_name,
     const base::Callback<void(mojo::ScopedMessagePipeHandle)>& service_factory)
     : service_name(service_name), service_factory(service_factory) {}
 
 HeadlessWebContents::Builder::MojoService::~MojoService() {}
 
 }  // namespace headless