fix(theme): prepend # to hex codes enableBrowserColor (#11492)

check for leading # and prepend
update enableBrowserColor tests

Fixes #11259

Author: jagmeetb

src/core/services/theming/theming.js

@@ -281,6 +281,7 @@ function ThemingProvider($mdColorPalette, $$mdMetaProvider) {
       PALETTES[THEMES[theme].colors[options.palette || 'primary'].name];
 
     var color = angular.isObject(palette[hue]) ? palette[hue].hex : palette[hue];
+    if (color.substr(0, 1) !== '#') color = '#' + color;
 
     return setBrowserColor(color);
   };

src/core/services/theming/theming.spec.js

@@ -363,7 +363,7 @@ describe('$mdThemingProvider', function() {
 
     it('should use default primary color at the meta tag', function () {
       var name = 'theme-color';
-      var content = themingProvider._PALETTES.testPalette['800'].hex;
+      var content = '#' + themingProvider._PALETTES.testPalette['800'].hex;
 
       expect(document.getElementsByName(name).length).toBe(0);
 
@@ -378,7 +378,7 @@ describe('$mdThemingProvider', function() {
 
       var hue = '200';
 
-      var content = themingProvider._PALETTES.testPalette[hue].hex;
+      var content = '#' + themingProvider._PALETTES.testPalette[hue].hex;
 
       expect(document.getElementsByName(name).length).toBe(0);
 
@@ -404,7 +404,7 @@ describe('$mdThemingProvider', function() {
     it('should use test theme', function () {
       var name = 'theme-color';
 
-      var content = themingProvider._PALETTES.testPalette['800'].hex;
+      var content = '#' + themingProvider._PALETTES.testPalette['800'].hex;
 
       expect(document.getElementsByName(name).length).toBe(0);