From 1166a56ceb1491633d602a9e036deda297fb4703 Mon Sep 17 00:00:00 2001
From: Cheng Zhao <zcbenz@gmail.com>
Date: Mon, 5 Jan 2015 13:29:16 -0800
Subject: [PATCH] Add a way to custom http cache backend

---
 .../browser/url_request_context_getter.cc     | 21 +++++++++++--------
 .../browser/url_request_context_getter.h      |  3 +++
 2 files changed, 15 insertions(+), 9 deletions(-)

diff --git a/brightray/browser/url_request_context_getter.cc b/brightray/browser/url_request_context_getter.cc
index 44a0f6cbcd..7f2f6d878e 100644
--- a/brightray/browser/url_request_context_getter.cc
+++ b/brightray/browser/url_request_context_getter.cc
@@ -20,7 +20,6 @@
 #include "net/cookies/cookie_monster.h"
 #include "net/dns/mapped_host_resolver.h"
 #include "net/http/http_auth_handler_factory.h"
-#include "net/http/http_cache.h"
 #include "net/http/http_server_properties_impl.h"
 #include "net/proxy/dhcp_proxy_script_fetcher_factory.h"
 #include "net/proxy/proxy_config_service.h"
@@ -99,6 +98,17 @@ net::URLRequestJobFactory* URLRequestContextGetter::Delegate::CreateURLRequestJo
   return top_job_factory.release();
 }
 
+net::HttpCache::BackendFactory*
+URLRequestContextGetter::Delegate::CreateHttpCacheBackendFactory(const base::FilePath& base_path) {
+  base::FilePath cache_path = base_path.Append(FILE_PATH_LITERAL("Cache"));
+  return new net::HttpCache::DefaultBackend(
+      net::DISK_CACHE,
+      net::CACHE_BACKEND_DEFAULT,
+      cache_path,
+      0,
+      BrowserThread::GetMessageLoopProxyForThread(BrowserThread::CACHE));
+}
+
 URLRequestContextGetter::URLRequestContextGetter(
     Delegate* delegate,
     const base::FilePath& base_path,
@@ -213,14 +223,7 @@ net::URLRequestContext* URLRequestContextGetter::GetURLRequestContext() {
     storage_->set_host_resolver(host_resolver.Pass());
     network_session_params.host_resolver = url_request_context_->host_resolver();
 
-    base::FilePath cache_path = base_path_.Append(FILE_PATH_LITERAL("Cache"));
-    net::HttpCache::DefaultBackend* backend =
-        new net::HttpCache::DefaultBackend(
-            net::DISK_CACHE,
-            net::CACHE_BACKEND_DEFAULT,
-            cache_path,
-            0,
-            BrowserThread::GetMessageLoopProxyForThread(BrowserThread::CACHE));
+    net::HttpCache::BackendFactory* 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 05588c20ee..85ed014422 100644
--- a/brightray/browser/url_request_context_getter.h
+++ b/brightray/browser/url_request_context_getter.h
@@ -8,6 +8,7 @@
 #include "base/files/file_path.h"
 #include "base/memory/scoped_ptr.h"
 #include "content/public/browser/content_browser_client.h"
+#include "net/http/http_cache.h"
 #include "net/url_request/url_request_context_getter.h"
 
 namespace base {
@@ -36,6 +37,8 @@ class URLRequestContextGetter : public net::URLRequestContextGetter {
     virtual net::URLRequestJobFactory* CreateURLRequestJobFactory(
         content::ProtocolHandlerMap* protocol_handlers,
         content::URLRequestInterceptorScopedVector* protocol_interceptors);
+    virtual net::HttpCache::BackendFactory* CreateHttpCacheBackendFactory(
+        const base::FilePath& base_path);
   };
 
   URLRequestContextGetter(