Extract AppBannerDataFetcher into an InstallableManager.

chrome/browser/installable/installable_property.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 "chrome/browser/installable/installable_property.h"
+
+#include "chrome/browser/installable/installable_logging.h"
+#include "content/public/common/manifest.h"
+#include "third_party/skia/include/core/SkBitmap.h"
+#include "url/gurl.h"
+
+ManifestProperty::ManifestProperty()
+    : error(NO_ERROR_DETECTED), url(), manifest(), fetched(false) { }
+
+void ManifestProperty::Reset() {
+  error = NO_ERROR_DETECTED;
+  url = GURL();
+  manifest = content::Manifest();
+  fetched = false;
+}
+
+BooleanProperty::BooleanProperty()
+    : error(NO_ERROR_DETECTED), value(false), fetched(false) { }
+
+void BooleanProperty::Reset() {
+  error = NO_ERROR_DETECTED;
+  value = false;
+  fetched = false;
+}
+
+IconProperty::IconProperty()
+    : error(NO_ERROR_DETECTED), url(), icon(nullptr), fetched(false) { }
+
+IconProperty::IconProperty(IconProperty&& other) = default;
+
+IconProperty::~IconProperty() = default;
+
+IconProperty& IconProperty::operator=(IconProperty&& other) =
+    default;