Initial CL for talking to the WebAPK server to generate WebAPK

chrome/browser/android/banners/app_banner_infobar_delegate_android.cc

Index: chrome/browser/android/banners/app_banner_infobar_delegate_android.cc
diff --git a/chrome/browser/android/banners/app_banner_infobar_delegate_android.cc b/chrome/browser/android/banners/app_banner_infobar_delegate_android.cc
index 03a1390dcb50e2834f59e693f518c804ddc3a2f8..643eb4cae2aeb8bd1c44abd0cfe4658aac31f0ad 100644
--- a/chrome/browser/android/banners/app_banner_infobar_delegate_android.cc
+++ b/chrome/browser/android/banners/app_banner_infobar_delegate_android.cc
@@ -262,8 +262,9 @@ bool AppBannerInfoBarDelegateAndroid::Accept() {
     const std::string& uid = base::GenerateGUID();
     content::BrowserThread::PostTask(
         content::BrowserThread::IO, FROM_HERE,
-        base::Bind(&ShortcutHelper::AddToLauncherInBackgroundWithSkBitmap, info,
-                   uid, *app_icon_.get(),
+        base::Bind(&ShortcutHelper::AddToLauncherInBackgroundWithSkBitmap,
+                   web_contents->GetBrowserContext(), info, uid,
+                   *app_icon_.get(),
                    data_fetcher_->FetchWebappSplashScreenImageCallback(uid)));
 
     SendBannerAccepted(web_contents, "web");