These data structures support the Media Router Dialog webui.

chrome/browser/ui/webui/media_router/media_cast_mode.cc

Index: chrome/browser/ui/webui/media_router/media_cast_mode.cc
diff --git a/chrome/browser/ui/webui/media_router/media_cast_mode.cc b/chrome/browser/ui/webui/media_router/media_cast_mode.cc
new file mode 100644
index 0000000000000000000000000000000000000000..dd9a4309c02c0810cd9cacde3f370cc09758513b
--- /dev/null
+++ b/chrome/browser/ui/webui/media_router/media_cast_mode.cc
@@ -0,0 +1,68 @@
+// 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/ui/webui/media_router/media_cast_mode.h"
+
+#include "base/logging.h"
+#include "base/strings/utf_string_conversions.h"
+#include "chrome/grit/generated_resources.h"
+#include "ui/base/l10n/l10n_util.h"
+
+namespace media_router {
+
+std::string MediaCastModeToTitle(MediaCastMode mode, const std::string& host) {
+  switch (mode) {
+    case MediaCastMode::DEFAULT:
+      return l10n_util::GetStringFUTF8(
+          IDS_MEDIA_ROUTER_DEFAULT_CAST_MODE_TITLE, base::UTF8ToUTF16(host));
+    case MediaCastMode::TAB_MIRROR:
+      return l10n_util::GetStringUTF8(
+          IDS_MEDIA_ROUTER_TAB_MIRROR_CAST_MODE_TITLE);
+    case MediaCastMode::DESKTOP_OR_WINDOW_MIRROR:
+      return l10n_util::GetStringUTF8(
+          IDS_MEDIA_ROUTER_DESKTOP_OR_WINDOW_MIRROR_CAST_MODE_TITLE);
+    case MediaCastMode::SOUND_OPTIMIZED_TAB_MIRROR:
+      return l10n_util::GetStringUTF8(
+          IDS_MEDIA_ROUTER_SOUND_OPTIMIZED_TAB_MIRROR_CAST_MODE_TITLE);
+    default:
+      NOTREACHED();
+      return "";
+  }
+}
+
+std::string MediaCastModeToDescription(
+    MediaCastMode mode, const std::string& host) {
+  switch (mode) {
+    case MediaCastMode::DEFAULT:
+      return l10n_util::GetStringFUTF8(
+          IDS_MEDIA_ROUTER_DEFAULT_CAST_MODE, base::UTF8ToUTF16(host));
+    case MediaCastMode::TAB_MIRROR:
+      return l10n_util::GetStringUTF8(
+          IDS_MEDIA_ROUTER_TAB_MIRROR_CAST_MODE);
+    case MediaCastMode::DESKTOP_OR_WINDOW_MIRROR:
+      return l10n_util::GetStringUTF8(
+          IDS_MEDIA_ROUTER_DESKTOP_OR_WINDOW_MIRROR_CAST_MODE);
+    case MediaCastMode::SOUND_OPTIMIZED_TAB_MIRROR:
+      return l10n_util::GetStringUTF8(
+          IDS_MEDIA_ROUTER_SOUND_OPTIMIZED_TAB_MIRROR_CAST_MODE);
+    default:
+      NOTREACHED();
+      return "";
+  }
+}
+
+bool IsValidCastModeNum(int cast_mode_num) {
+  return cast_mode_num >= MediaCastMode::DEFAULT &&
+         cast_mode_num < MediaCastMode::NUM_CAST_MODES;
+}
+
+MediaCastMode GetPreferredCastMode(const CastModeSet& cast_modes) {
+  if (cast_modes.empty()) {
+    LOG(ERROR) << "Called with empty cast_modes!";
+    return MediaCastMode::DEFAULT;
+  }
+  return *cast_modes.begin();
+}
+
+}  // namespace media_router