webapps: utilize manifest theme colors

chrome/android/java/src/org/chromium/chrome/browser/ShortcutHelper.java

Index: chrome/android/java/src/org/chromium/chrome/browser/ShortcutHelper.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/ShortcutHelper.java b/chrome/android/java/src/org/chromium/chrome/browser/ShortcutHelper.java
index 1b5ccd403adafc026f05b69d0d2c0744ab96f67a..833a0a5609098f7437f660684fa6209694f244d7 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/ShortcutHelper.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/ShortcutHelper.java
@@ -33,8 +33,12 @@ public class ShortcutHelper {
     public static final String EXTRA_TITLE = "org.chromium.chrome.browser.webapp_title";
     public static final String EXTRA_URL = "org.chromium.chrome.browser.webapp_url";
     public static final String EXTRA_ORIENTATION = ScreenOrientationConstants.EXTRA_ORIENTATION;
+    public static final String EXTRA_THEME_COLOR = "org.chromium.chrome.browser.theme_color";
     public static final String EXTRA_SOURCE = "org.chromium.chrome.browser.webapp_source";
 
+    // This value is equal to kInvalidOrMissingThemeColor in the C++ content::Manifest struct.
+    public static final long THEME_COLOR_INVALID_OR_MISSING = -1;
+
     // This value is equal to SOURCE_UNKNOWN in the C++ ShortcutInfo struct.
     public static final int SOURCE_UNKNOWN = 0;
 
@@ -47,6 +51,7 @@ public class ShortcutHelper {
         void onIconAvailable(Bitmap icon);
     }
 
+    /** Delegate utilized for testing purposes */
     public static class Delegate {
         /**
          * Broadcasts an intent to all interested BroadcastReceivers.
@@ -154,7 +159,7 @@ public class ShortcutHelper {
     @SuppressWarnings("unused")
     @CalledByNative
     private static void addShortcut(Context context, String url, String title, Bitmap icon,
-            boolean isWebappCapable, int orientation, int source) {
+            boolean isWebappCapable, long themeColor, int orientation, int source) {
         Intent shortcutIntent;
         if (isWebappCapable) {
             // Encode the icon as a base64 string (Launcher drops Bitmaps in the Intent).
@@ -175,6 +180,7 @@ public class ShortcutHelper {
             shortcutIntent.putExtra(EXTRA_URL, url);
             shortcutIntent.putExtra(EXTRA_ORIENTATION, orientation);
             shortcutIntent.putExtra(EXTRA_MAC, getEncodedMac(context, url));
+            shortcutIntent.putExtra(EXTRA_THEME_COLOR, themeColor);
         } else {
             // Add the shortcut as a launcher icon to open in the browser Activity.
             shortcutIntent = BookmarkUtils.createShortcutIntent(url);