webapps: utilize manifest theme colors

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),
-      source(SOURCE_ADD_TO_HOMESCREEN) {
+      source(SOURCE_ADD_TO_HOMESCREEN),
+      theme_color(content::Manifest::kInvalidOrMissingThemeColor) {
 }
 
 ShortcutInfo::ShortcutInfo(const GURL& shortcut_url)
     : url(shortcut_url),
       display(content::Manifest::DISPLAY_MODE_BROWSER),
       orientation(blink::WebScreenOrientationLockDefault),
-      source(SOURCE_ADD_TO_HOMESCREEN) {
+      source(SOURCE_ADD_TO_HOMESCREEN),
+      theme_color(content::Manifest::kInvalidOrMissingThemeColor) {
 }
 
 ShortcutInfo::~ShortcutInfo() {
 }
 
 void ShortcutInfo::UpdateFromManifest(const content::Manifest& manifest) {
   if (!manifest.short_name.is_null())
     short_name = manifest.short_name.string();
   if (!manifest.name.is_null())
     name = manifest.name.string();
@@ skipping 21 matching lines @@
     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;
   }
+
+  // Set the theme color based on the manifest value, if any.
+  if (manifest.theme_color != content::Manifest::kInvalidOrMissingThemeColor)
+    theme_color = manifest.theme_color;
 }
 
 void ShortcutInfo::UpdateSource(const Source new_source) {
   source = new_source;
 }