Add a chrome://webapks page.

chrome/browser/ui/webui/webapks_handler.cc

Index: chrome/browser/ui/webui/webapks_handler.cc
diff --git a/chrome/browser/ui/webui/webapks_handler.cc b/chrome/browser/ui/webui/webapks_handler.cc
new file mode 100644
index 0000000000000000000000000000000000000000..65f0f860bdf1d4f81b0bd8243d6102f1c9687cf6
--- /dev/null
+++ b/chrome/browser/ui/webui/webapks_handler.cc
@@ -0,0 +1,54 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.

[hartmanng, 2017/01/13 15:40:21]

s/(c) 2012/2017/

[gonzalon, 2017/01/13 20:24:39]

Done.

+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "chrome/browser/ui/webui/webapks_handler.h"
+
+#include <stddef.h>
+
+#include "base/callback_forward.h"

[hartmanng, 2017/01/13 15:40:21]

this seems like a lot of includes for a small file - are all these actually
necessary?

[gonzalon, 2017/01/13 20:24:39]

Done.

+#include "base/strings/string_util.h"
+#include "base/strings/stringprintf.h"
+#include "base/strings/utf_string_conversions.h"
+#include "chrome/browser/android/webapps/webapp_registry.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/grit/generated_resources.h"
+#include "components/strings/grit/components_strings.h"
+#include "components/webapks_ui/webapks_ui_constants.h"
+#include "content/public/browser/browser_thread.h"
+#include "content/public/browser/web_ui.h"
+#include "content/public/common/content_constants.h"
+#include "ppapi/features/features.h"
+#include "ui/base/l10n/l10n_util.h"
+
+WebAPKsHandler::WebAPKsHandler() : weak_ptr_factory_(this) {}
+
+WebAPKsHandler::~WebAPKsHandler() {}
+
+void WebAPKsHandler::RegisterMessages() {
+  web_ui()->RegisterMessageCallback(
+      webapks_ui::kRequestWebAPKsInfo,
+      base::Bind(&WebAPKsHandler::HandleRequestWebAPKsInfo,
+                 base::Unretained(this)));
+}
+
+void WebAPKsHandler::HandleRequestWebAPKsInfo(const base::ListValue* args) {
+  base::RepeatingCallback<void(std::string, std::string, int, int)> callback =
+      base::BindRepeating(&WebAPKsHandler::OnWebApkInfoReceived,
+                          weak_ptr_factory_.GetWeakPtr());
+  std::unique_ptr<WebappRegistry> webapp_registry_(new WebappRegistry());
+  webapp_registry_->ListWebAPKs(callback);
+}
+
+void WebAPKsHandler::OnWebApkInfoReceived(std::string name,
+                                          std::string package_name,
+                                          int shell_apk_version,
+                                          int version_code) {
+  base::StringValue name_value(name);
+  base::StringValue package_name_value(package_name);
+  base::FundamentalValue shell_apk_version_value(shell_apk_version);
+  base::FundamentalValue version_code_value(version_code);
+  web_ui()->CallJavascriptFunctionUnsafe(
+      webapks_ui::kReturnWebAPKsInfo, name_value, package_name_value,
+      shell_apk_version_value, version_code_value);
+}