Don't ignore manifest icons for sites that don't have a service worker.

chrome/browser/android/webapps/add_to_homescreen_manager.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/webapps/add_to_homescreen_manager.h"
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_string.h"
 #include "base/location.h"
 #include "base/memory/ptr_util.h"
@@ skipping 13 matching lines @@
 #include "content/public/browser/web_contents.h"
 #include "jni/AddToHomescreenManager_jni.h"
 #include "mojo/public/cpp/bindings/interface_request.h"
 #include "services/service_manager/public/cpp/interface_provider.h"
 #include "third_party/WebKit/public/platform/modules/installation/installation.mojom.h"
 #include "ui/gfx/android/java_bitmap.h"
 
 using base::android::JavaParamRef;
 using base::android::ScopedJavaLocalRef;
 
+namespace {
+
+// The length of time to allow the add to homescreen data fetcher to run before
+// timing out and generating an icon.
+const int kDataTimeoutInMilliseconds = 4000;
+
+}  // namespace
+
 jlong InitializeAndStart(JNIEnv* env,
                          const JavaParamRef<jobject>& obj,
                          const JavaParamRef<jobject>& java_web_contents) {
   content::WebContents* web_contents =
       content::WebContents::FromJavaWebContents(java_web_contents);
   AddToHomescreenManager* manager = new AddToHomescreenManager(env, obj);
   manager->Start(web_contents);
   return reinterpret_cast<intptr_t>(manager);
 }
 
@@ skipping 43 matching lines @@
     check_webapk_compatible = true;
   } else {
     ShowDialog();
   }
 
   data_fetcher_ = new AddToHomescreenDataFetcher(
       web_contents, ShortcutHelper::GetIdealHomescreenIconSizeInPx(),
       ShortcutHelper::GetMinimumHomescreenIconSizeInPx(),
       ShortcutHelper::GetIdealSplashImageSizeInPx(),
       ShortcutHelper::GetMinimumSplashImageSizeInPx(),
-      ShortcutHelper::GetIdealBadgeIconSizeInPx(),
+      ShortcutHelper::GetIdealBadgeIconSizeInPx(), kDataTimeoutInMilliseconds,
       check_webapk_compatible, this);
 }
 
 AddToHomescreenManager::~AddToHomescreenManager() {
   if (data_fetcher_) {
     data_fetcher_->set_weak_observer(nullptr);
     data_fetcher_ = nullptr;
   }
 }
 
@@ skipping 76 matching lines @@
 
 SkBitmap AddToHomescreenManager::FinalizeLauncherIconInBackground(
     const SkBitmap& bitmap,
     const GURL& url,
     bool* is_generated) {
   base::ThreadRestrictions::AssertIOAllowed();
 
   return ShortcutHelper::FinalizeLauncherIconInBackground(bitmap, url,
                                                           is_generated);
 }