Add possibility to define data callback to BitmapFetcher

chrome/browser/extensions/api/webstore_private/webstore_private_api.cc

 // Copyright (c) 2012 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/extensions/api/webstore_private/webstore_private_api.h"
 
 #include "base/bind_helpers.h"
 #include "base/lazy_instance.h"
 #include "base/memory/scoped_vector.h"
 #include "base/message_loop/message_loop_proxy.h"
@@ skipping 598 matching lines @@
   if (params_->contents.empty())
     return RespondNow(Error(kInvalidBundleError));
 
   if (params_->details.icon_url) {
     GURL icon_url = source_url().Resolve(*params_->details.icon_url);
     if (!icon_url.is_valid())
       return RespondNow(Error(kInvalidIconUrlError));
 
     // The bitmap fetcher will call us back via OnFetchComplete.
     icon_fetcher_.reset(new chrome::BitmapFetcher(icon_url, this));
-    icon_fetcher_->Start(
+    icon_fetcher_->Init(
         browser_context()->GetRequestContext(), std::string(),
         net::URLRequest::CLEAR_REFERRER_ON_TRANSITION_FROM_SECURE_TO_INSECURE,
         net::LOAD_DO_NOT_SAVE_COOKIES | net::LOAD_DO_NOT_SEND_COOKIES);
+    icon_fetcher_->Start();
   } else {
     base::MessageLoopProxy::current()->PostTask(
         FROM_HERE,
         base::Bind(&WebstorePrivateInstallBundleFunction::OnFetchComplete,
                    this, GURL(), nullptr));
   }
 
   AddRef();  // Balanced in OnFetchComplete.
 
   // The response is sent asynchronously in OnFetchComplete, OnInstallApproval,
@@ skipping 236 matching lines @@
 WebstorePrivateGetEphemeralAppsEnabledFunction::
     ~WebstorePrivateGetEphemeralAppsEnabledFunction() {}
 
 ExtensionFunction::ResponseAction
 WebstorePrivateGetEphemeralAppsEnabledFunction::Run() {
   return RespondNow(ArgumentList(GetEphemeralAppsEnabled::Results::Create(
       EphemeralAppLauncher::IsFeatureEnabled())));
 }
 
 }  // namespace extensions