Break out more manifest parsing logic from ShortcutHelper

chrome/browser/android/shortcut_info.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 "chrome/browser/android/shortcut_info.h"
+
+ShortcutInfo::ShortcutInfo()
+    : display(content::Manifest::DISPLAY_MODE_BROWSER),
+      orientation(blink::WebScreenOrientationLockDefault) {
+}
+
+ShortcutInfo::ShortcutInfo(const GURL& shortcut_url)
+    : url(shortcut_url),
+      display(content::Manifest::DISPLAY_MODE_BROWSER),
+      orientation(blink::WebScreenOrientationLockDefault) {
+}
+
+void ShortcutInfo::UpdateFromManifest(const content::Manifest& manifest) {
+  if (!manifest.short_name.is_null())
+    title = manifest.short_name.string();
+  else if (!manifest.name.is_null())
+    title = manifest.name.string();
+
+  // Set the url based on the manifest value, if any.
+  if (manifest.start_url.is_valid())
+    url = manifest.start_url;
+
+  // Set the display based on the manifest value, if any.
+  if (manifest.display != content::Manifest::DISPLAY_MODE_UNSPECIFIED)
+    display = manifest.display;
+
+  // 'fullscreen' and 'minimal-ui' are not yet supported, fallback to the right
+  // mode in those cases.
+  if (manifest.display == content::Manifest::DISPLAY_MODE_FULLSCREEN)
+    display = content::Manifest::DISPLAY_MODE_STANDALONE;
+  if (manifest.display == content::Manifest::DISPLAY_MODE_MINIMAL_UI)
+    display = content::Manifest::DISPLAY_MODE_BROWSER;
+
+  // Set the orientation based on the manifest value, if any.
+  if (manifest.orientation != blink::WebScreenOrientationLockDefault) {
+    // Ignore the orientation if the display mode is different from
+    // 'standalone'.
+    // TODO(mlamouri): send a message to the developer console about this.
+    if (display == content::Manifest::DISPLAY_MODE_STANDALONE)
+      orientation = manifest.orientation;
+  }
+}