diff --git a/brightray/browser/browser_context.cc b/brightray/browser/browser_context.cc
index c490de4fe276..34701a4d9c20 100644
--- a/brightray/browser/browser_context.cc
+++ b/brightray/browser/browser_context.cc
@@ -69,13 +69,17 @@ class BrowserContext::ResourceContext : public content::ResourceContext {
 BrowserContext::BrowserContext() : resource_context_(new ResourceContext) {
 }
 
-void BrowserContext::Initialize() {
+void BrowserContext::Initialize(const base::FilePath& partition_path, bool in_memory) {
   if (!PathService::Get(DIR_USER_DATA, &path_)) {
     PathService::Get(DIR_APP_DATA, &path_);
     path_ = path_.Append(base::FilePath::FromUTF8Unsafe(GetApplicationName()));
     PathService::Override(DIR_USER_DATA, path_);
   }
 
+  if (!partition_path.empty())
+    path_ = path_.Append(partition_path);
+  in_memory_ = in_memory;
+
   auto prefs_path = GetPath().Append(FILE_PATH_LITERAL("Preferences"));
   base::PrefServiceFactory prefs_factory;
   prefs_factory.SetUserPrefsFile(prefs_path,
@@ -108,6 +112,7 @@ net::URLRequestContextGetter* BrowserContext::CreateRequestContext(
       this,
       net_log,
       GetPath(),
+      in_memory_,
       BrowserThread::UnsafeGetMessageLoopForThread(BrowserThread::IO),
       BrowserThread::UnsafeGetMessageLoopForThread(BrowserThread::FILE),
       protocol_handlers,
@@ -130,7 +135,7 @@ scoped_ptr<content::ZoomLevelDelegate> BrowserContext::CreateZoomLevelDelegate(
 }
 
 bool BrowserContext::IsOffTheRecord() const {
-  return false;
+  return in_memory_;
 }
 
 net::URLRequestContextGetter* BrowserContext::GetRequestContext() {
diff --git a/brightray/browser/browser_context.h b/brightray/browser/browser_context.h
index 6b0ca300b2a1..a59d21c49a12 100644
--- a/brightray/browser/browser_context.h
+++ b/brightray/browser/browser_context.h
@@ -23,7 +23,8 @@ class BrowserContext : public content::BrowserContext,
   BrowserContext();
   ~BrowserContext();
 
-  virtual void Initialize();
+  virtual void Initialize(const base::FilePath& partition_path,
+                          bool in_memory = false);
 
   // content::BrowserContext:
   scoped_ptr<content::ZoomLevelDelegate> CreateZoomLevelDelegate(
@@ -71,6 +72,7 @@ class BrowserContext : public content::BrowserContext,
   void RegisterInternalPrefs(PrefRegistrySimple* pref_registry);
 
   base::FilePath path_;
+  bool in_memory_;
   scoped_ptr<ResourceContext> resource_context_;
   scoped_refptr<URLRequestContextGetter> url_request_getter_;
   scoped_ptr<PrefService> prefs_;
diff --git a/brightray/browser/browser_main_parts.cc b/brightray/browser/browser_main_parts.cc
index fe6a42b93690..537d1c1f2952 100644
--- a/brightray/browser/browser_main_parts.cc
+++ b/brightray/browser/browser_main_parts.cc
@@ -121,7 +121,7 @@ void BrowserMainParts::PreMainMessageLoopStart() {
 
 void BrowserMainParts::PreMainMessageLoopRun() {
   browser_context_.reset(CreateBrowserContext());
-  browser_context_->Initialize();
+  browser_context_->Initialize(base::FilePath());
 
   web_ui_controller_factory_.reset(
       new WebUIControllerFactory(browser_context_.get()));
diff --git a/brightray/browser/url_request_context_getter.cc b/brightray/browser/url_request_context_getter.cc
index 2896c49ae46a..e390f1c2afe7 100644
--- a/brightray/browser/url_request_context_getter.cc
+++ b/brightray/browser/url_request_context_getter.cc
@@ -121,6 +121,7 @@ URLRequestContextGetter::URLRequestContextGetter(
     Delegate* delegate,
     NetLog* net_log,
     const base::FilePath& base_path,
+    bool in_memory,
     base::MessageLoop* io_loop,
     base::MessageLoop* file_loop,
     content::ProtocolHandlerMap* protocol_handlers,
@@ -128,6 +129,7 @@ URLRequestContextGetter::URLRequestContextGetter(
     : delegate_(delegate),
       net_log_(net_log),
       base_path_(base_path),
+      in_memory_(in_memory),
       io_loop_(io_loop),
       file_loop_(file_loop),
       url_sec_mgr_(net::URLSecurityManager::Create(NULL, NULL)),
@@ -154,8 +156,8 @@ net::HostResolver* URLRequestContextGetter::host_resolver() {
 net::URLRequestContext* URLRequestContextGetter::GetURLRequestContext() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 
-  auto& command_line = *base::CommandLine::ForCurrentProcess();
   if (!url_request_context_.get()) {
+    auto& command_line = *base::CommandLine::ForCurrentProcess();
     url_request_context_.reset(new net::URLRequestContext);
 
     // --log-net-log
@@ -166,11 +168,18 @@ net::URLRequestContext* URLRequestContextGetter::GetURLRequestContext() {
     url_request_context_->set_network_delegate(network_delegate_.get());
 
     storage_.reset(new net::URLRequestContextStorage(url_request_context_.get()));
-    auto cookie_config = content::CookieStoreConfig(
-        base_path_.Append(FILE_PATH_LITERAL("Cookies")),
-        content::CookieStoreConfig::EPHEMERAL_SESSION_COOKIES,
-        NULL, NULL);
-    storage_->set_cookie_store(content::CreateCookieStore(cookie_config));
+
+    scoped_refptr<net::CookieStore> cookie_store = nullptr;
+    if (in_memory_) {
+      cookie_store = content::CreateCookieStore(content::CookieStoreConfig());
+    } else {
+      auto cookie_config = content::CookieStoreConfig(
+          base_path_.Append(FILE_PATH_LITERAL("Cookies")),
+          content::CookieStoreConfig::EPHEMERAL_SESSION_COOKIES,
+          NULL, NULL);
+      cookie_store = content::CreateCookieStore(cookie_config);
+    }
+    storage_->set_cookie_store(cookie_store.get());
     storage_->set_channel_id_service(make_scoped_ptr(
         new net::ChannelIDService(new net::DefaultChannelIDStore(NULL),
                                   base::WorkerPool::GetTaskRunner(true))));
@@ -265,7 +274,12 @@ net::URLRequestContext* URLRequestContextGetter::GetURLRequestContext() {
     storage_->set_host_resolver(host_resolver.Pass());
     network_session_params.host_resolver = url_request_context_->host_resolver();
 
-    net::HttpCache::BackendFactory* backend = delegate_->CreateHttpCacheBackendFactory(base_path_);
+    net::HttpCache::BackendFactory* backend = nullptr;
+    if (in_memory_) {
+      backend = net::HttpCache::DefaultBackend::InMemory(0);
+    } else {
+      backend = delegate_->CreateHttpCacheBackendFactory(base_path_);
+    }
     storage_->set_http_transaction_factory(new net::HttpCache(network_session_params, backend));
 
     storage_->set_job_factory(delegate_->CreateURLRequestJobFactory(
diff --git a/brightray/browser/url_request_context_getter.h b/brightray/browser/url_request_context_getter.h
index 376f69c9a2f6..ab773b29a406 100644
--- a/brightray/browser/url_request_context_getter.h
+++ b/brightray/browser/url_request_context_getter.h
@@ -49,6 +49,7 @@ class URLRequestContextGetter : public net::URLRequestContextGetter {
       Delegate* delegate,
       NetLog* net_log,
       const base::FilePath& base_path,
+      bool in_memory,
       base::MessageLoop* io_loop,
       base::MessageLoop* file_loop,
       content::ProtocolHandlerMap* protocol_handlers,
@@ -66,6 +67,7 @@ class URLRequestContextGetter : public net::URLRequestContextGetter {
 
   NetLog* net_log_;
   base::FilePath base_path_;
+  bool in_memory_;
   base::MessageLoop* io_loop_;
   base::MessageLoop* file_loop_;