[Service Worker Registration] Registered extension scheme to allow service workers

chrome/renderer/chrome_content_renderer_client.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/renderer/chrome_content_renderer_client.h"
 
 #include "base/command_line.h"
 #include "base/debug/crash_logging.h"
 #include "base/logging.h"
 #include "base/metrics/field_trial.h"
@@ skipping 483 matching lines @@
   WebSecurityPolicy::registerURLSchemeAsCORSEnabled(extension_scheme);
   WebSecurityPolicy::registerURLSchemeAsCORSEnabled(extension_resource_scheme);
 
   // chrome-extension: resources should bypass Content Security Policy checks
   // when included in protected resources.
   WebSecurityPolicy::registerURLSchemeAsBypassingContentSecurityPolicy(
       extension_scheme);
   WebSecurityPolicy::registerURLSchemeAsBypassingContentSecurityPolicy(
       extension_resource_scheme);
 
+  // chrome-extension: resources should be allowed to register a Service Worker.
+  WebSecurityPolicy::registerURLSchemeAsAllowingServiceWorkers(

[Devlin, 2015/06/30 22:01:15]

We can actually move this into the constructor of ExtensionsRendererClient,
which would be a bit cleaner (since it's an extension-specific thing).  We
should probably do the same with the ones above, but let's hold off on that for
now.

We should also start adding at least a basic test, and ensure that we get
ever-so-slightly farther than we did before. :)  Then, we can continue to
iterate on that test, and it can serve as a nice progress tracker, too.

+      extension_scheme);
+
 #if defined(OS_WIN)
   // Report if the renderer process has been patched by chrome_elf.
   // TODO(csharp): Remove once the renderer is no longer getting
   // patched this way.
   if (blacklist::IsBlacklistInitialized())
     UMA_HISTOGRAM_BOOLEAN("Blacklist.PatchedInRenderer", true);
 #endif
 #if defined(ENABLE_PRINT_PREVIEW)
   pdf_print_client_.reset(new ChromePDFPrintClient());
   pdf::PepperPDFHost::SetPrintClient(pdf_print_client_.get());
@@ skipping 1106 matching lines @@
   WebString header_key(ASCIIToUTF16(
       data_reduction_proxy::chrome_proxy_header()));
   if (!response.httpHeaderField(header_key).isNull() &&
       response.httpHeaderField(header_key).utf8().find(
           data_reduction_proxy::chrome_proxy_lo_fi_directive()) !=
               std::string::npos) {
     (*properties)[data_reduction_proxy::chrome_proxy_header()] =
         data_reduction_proxy::chrome_proxy_lo_fi_directive();
   }
 }