Add flash sitehack on SiriusXM

Fix #4195

Auditors: @srirambv

Test Plan:
1. go to player.sririusxm.com
2. flash notification should appear

js/components/frame.js

@@ -541,8 +541,10 @@ class Frame extends ImmutableComponent {
    *   can either be main frame or subframe.
    * @param {function=} noFlashCallback - Optional callback to run if Flash is not
    *   installed
+   * @param {function=} flashCallback - Optional callback to run if Flash is
+   *   accepted
    */
-  showFlashNotification (origin, noFlashCallback) {
+  showFlashNotification (origin, noFlashCallback, flashCallback) {
     if (!origin || !UrlUtil.shouldInterceptFlash(origin)) {
       noFlashCallback()
       return
@@ -573,6 +575,9 @@ class Frame extends ImmutableComponent {
           } else {
             appActions.changeSiteSetting(this.origin, 'flash', 1)
           }
+          if (flashCallback) {
+            flashCallback()
+          }
         } else {
           if (persist) {
             appActions.changeSiteSetting(this.origin, 'flash', false)
@@ -763,7 +768,7 @@ class Frame extends ImmutableComponent {
       method.apply(this, e.args)
     })
 
-    const interceptFlash = (stopCurrentLoad, adobeUrl) => {
+    const interceptFlash = (stopCurrentLoad, adobeUrl, redirectUrl) => {
       if (!this.origin) {
         return
       }
@@ -781,6 +786,10 @@ class Frame extends ImmutableComponent {
         if (stopCurrentLoad && adobeUrl) {
           windowActions.loadUrl(this.frame, adobeUrl)
         }
+      }, () => {
+        if (redirectUrl) {
+          windowActions.loadUrl(this.frame, redirectUrl)
+        }
       })
     }
 
@@ -838,7 +847,7 @@ class Frame extends ImmutableComponent {
       if (hack && hack.enableFlashCTP &&
           !this.webview.allowRunningPlugins && this.props.flashInitialized) {
         // Fix #3011
-        interceptFlash(false)
+        interceptFlash(false, undefined, hack.redirectURL)
       }
     }
     const loadFail = (e, provisionLoadFailure = false) => {

js/data/siteHacks.js

@@ -116,5 +116,9 @@ module.exports.siteHacks = {
   },
   'play.spotify.com': {
     enableFlashCTP: true
+  },
+  'player.siriusxm.com': {
+    enableFlashCTP: true,
+    redirectURL: 'https://player.siriusxm.com'
   }
 }