Cleanup Tool WebUI: Add HTML content and styling with dummy JS

chrome/browser/ui/webui/cleanup_tool/cleanup_action_handler.cc

+// Copyright 2017 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 "chrome/browser/ui/webui/cleanup_tool/cleanup_action_handler.h"
+
+#include "base/bind.h"
+#include "base/values.h"
+#include "chrome/grit/generated_resources.h"
+#include "ui/base/l10n/l10n_util.h"

[Dan Beam, 2017/04/04 00:00:00]

why are these bottom 2 #includes needed?

[proberge, 2017/04/04 16:10:08]

They were used before I split this CL. Removed for now.

+
+CleanupActionHandler::CleanupActionHandler() {}
+
+void CleanupActionHandler::RegisterMessages() {
+  web_ui()->RegisterMessageCallback(
+      "requestLastScanResult",
+      base::Bind(&CleanupActionHandler::HandleRequestLastScanResult,
+                 base::Unretained(this)));
+}
+
+void CleanupActionHandler::HandleRequestLastScanResult(
+    const base::ListValue* args) {
+  std::string webui_callback_id;
+  CHECK_EQ(1U, args->GetSize());
+  bool success = args->GetString(0, &webui_callback_id);

[Dan Beam, 2017/04/04 00:00:00]

can you just get this as a base::Value instead of as a std::string?

[proberge, 2017/04/04 16:10:07]

I copied this pattern from
https://cs.chromium.org/chromium/src/chrome/browser/ui/webui/signin/user_mana...
and others.

Keeping as is to stay consistent, we can clean all of them up in a later CL.

+  DCHECK(success);
+
+  base::DictionaryValue last_scan_results;
+  // TODO(proberge): Return real information about the last run.
+  // TODO(proberge): Localize strings once they are finalized.
+  last_scan_results.SetBoolean("hasScanResults", false);
+  last_scan_results.SetBoolean("isInfected", false);
+  last_scan_results.SetString("detectionStatusText", "No problems detected");
+  last_scan_results.SetString("detectionTimeText", "Last scanned today");
+
+  AllowJavascript();
+  ResolveJavascriptCallback(base::Value(webui_callback_id), last_scan_results);
+}