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

blimp/engine/app/blimp_browser_main_parts.h

Index: blimp/engine/app/blimp_browser_main_parts.h
diff --git a/blimp/engine/app/blimp_browser_main_parts.h b/blimp/engine/app/blimp_browser_main_parts.h
index 0fdbe8a68f90f0fb80eaf33f82c4753766a759d2..a540ba7dd93cf4aa958bb32282188192e2ae7412 100644
--- a/blimp/engine/app/blimp_browser_main_parts.h
+++ b/blimp/engine/app/blimp_browser_main_parts.h
@@ -47,6 +47,11 @@ class BlimpBrowserMainParts : public content::BrowserMainParts {
   BlobChannelService* GetBlobChannelService();
   BlimpEngineSession* GetBlimpEngineSession();
 
+  void SetSettingsManagerForTesting(

[shenghuazhang, 2017/01/10 23:20:49]

Set to be protected too.

+      std::unique_ptr<SettingsManager> settings_manager);
+  void SetEngineSessionForTesting(
+      std::unique_ptr<BlimpEngineSession> engine_session);
+
  private:
   std::unique_ptr<BlimpEngineConfig> engine_config_;
   std::unique_ptr<net::NetLog> net_log_;