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

blimp/engine/app/blimp_content_browser_client.h

Index: blimp/engine/app/blimp_content_browser_client.h
diff --git a/blimp/engine/app/blimp_content_browser_client.h b/blimp/engine/app/blimp_content_browser_client.h
index d843da0cb939fd58867776282cb186236da00cb3..b0fed7c68852b0a5c1d1e83003eed0192ddfc00e 100644
--- a/blimp/engine/app/blimp_content_browser_client.h
+++ b/blimp/engine/app/blimp_content_browser_client.h
@@ -36,11 +36,14 @@ class BlimpContentBrowserClient : public content::ContentBrowserClient {
 
   BlimpBrowserContext* GetBrowserContext();
 
+  void SetBrowserMainPartsForTesting(
+      BlimpBrowserMainParts* blimp_browser_main_parts);
+
  private:
   // Owned by BrowserMainLoop
   BlimpBrowserMainParts* blimp_browser_main_parts_ = nullptr;
 
-  DISALLOW_COPY_AND_ASSIGN(BlimpContentBrowserClient);
+  // DISALLOW_COPY_AND_ASSIGN(BlimpContentBrowserClient);
 };
 
 }  // namespace engine