[MD settings] appearance theme and wallpaper

chrome/browser/resources/settings/appearance_page/appearance_page.js

Index: chrome/browser/resources/settings/appearance_page/appearance_page.js
diff --git a/chrome/browser/resources/settings/appearance_page/appearance_page.js b/chrome/browser/resources/settings/appearance_page/appearance_page.js
index c8320e907b5b9f6b5281a8f0e55d4f36683acc4e..b5d0f19833d9a90cb2f290771493ec55300a8bad 100644
--- a/chrome/browser/resources/settings/appearance_page/appearance_page.js
+++ b/chrome/browser/resources/settings/appearance_page/appearance_page.js
@@ -28,6 +28,9 @@ Polymer({
       type: Object,
     },
 
+    /** @private {!settings.AppearanceBrowserProxy} */
+    browserProxy_: Object,
+
     /**
      * Preferences state.
      */
@@ -111,6 +114,10 @@ Polymer({
     'zoomLevelChanged_(defaultZoomLevel_.value)',
   ],
 
+  created: function() {
+    this.browserProxy_ = settings.AppearanceBrowserProxyImpl.getInstance();
+  },
+
   ready: function() {
     this.$.defaultFontSize.menuOptions = this.fontSizeOptions_;
     this.$.pageZoom.menuOptions = this.pageZoomOptions_;
@@ -123,7 +130,7 @@ Polymer({
   /** @override */
   attached: function() {
     // Query the initial state.
-    cr.sendWithPromise('getResetThemeEnabled').then(
+    this.browserProxy_.getResetThemeEnabled().then(
         this.setResetThemeEnabled.bind(this));
 
     // Set up the change event listener.
@@ -160,9 +167,17 @@ Polymer({
     window.open(loadTimeData.getString('themesGalleryUrl'));
   },
 
+  /**

[dpapad, 2016/04/19 23:32:40]

Same here, let's wrap with "if expr". I think you also need to mark this file as
"flattenhtml=true" in settings_resources.grd for this to work.

[dschuyler, 2016/04/20 00:19:07]

Done.

+   * ChromeOS only.
+   * @private
+   */
+  openWallpaperGallery_: function() {

[dpapad, 2016/04/19 23:32:40]

Nit(optional): Gallery vs Manager, can we stick with a single term?

[dschuyler, 2016/04/20 00:19:06]

Done.

+    this.browserProxy_.openWallpaperManager();
+  },
+
   /** @private */
   resetTheme_: function() {
-    chrome.send('resetTheme');
+    this.browserProxy_.resetTheme();
   },
 
   /** @private */