[Blimp] Refactor Blimp test engine with embedded test server and URL rewriting

blimp/engine/app/blimp_content_browser_client.cc

 // Copyright (c) 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 "base/json/json_reader.h"
 #include "blimp/engine/app/blimp_browser_main_parts.h"
 #include "blimp/engine/app/blimp_content_browser_client.h"
 #include "blimp/engine/app/settings_manager.h"
 #include "blimp/engine/grit/blimp_browser_resources.h"
 #include "blimp/engine/mojo/blob_channel_service.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/common/service_names.mojom.h"
 #include "services/service_manager/public/cpp/interface_registry.h"
 #include "ui/base/resource/resource_bundle.h"
 
 namespace blimp {
 namespace engine {
 
 BlimpContentBrowserClient::BlimpContentBrowserClient() {}
 
 BlimpContentBrowserClient::~BlimpContentBrowserClient() {}
 
 content::BrowserMainParts* BlimpContentBrowserClient::CreateBrowserMainParts(
     const content::MainFunctionParams& parameters) {
   blimp_browser_main_parts_ = new BlimpBrowserMainParts(parameters);
   // BrowserMainLoop takes ownership of the returned BrowserMainParts.
   return blimp_browser_main_parts_;
 }
 
+void BlimpContentBrowserClient::SetBrowserMainPartsForTesting(
+    BlimpBrowserMainParts* blimp_browser_main_parts) {
+  blimp_browser_main_parts_ = blimp_browser_main_parts;
+}
+
 void BlimpContentBrowserClient::OverrideWebkitPrefs(
     content::RenderViewHost* render_view_host,
     content::WebPreferences* prefs) {
   if (!blimp_browser_main_parts_)
     return;
 
   if (!blimp_browser_main_parts_->GetSettingsManager())
     return;
 
   blimp_browser_main_parts_->GetSettingsManager()->UpdateWebkitPreferences(
@@ skipping 23 matching lines @@
     return nullptr;
   }
 
   base::StringPiece manifest_contents =
       rb.GetRawDataResourceForScale(id, ui::ScaleFactor::SCALE_FACTOR_NONE);
   return base::JSONReader::Read(manifest_contents);
 }
 
 }  // namespace engine
 }  // namespace blimp