* Avoid doing concurrent DNS resolves of the same hostname in HostResolver.

* Add a 1 minute cache for host resolves.

* Refactor HostResolver to handle multiple requests.

* Make HostResolver a dependency of URLRequestContext. operate the HostResolver
in async mode for proxy resolver (bridging to IO thread).

TEST=unittests
BUG=13163

Review URL: http://codereview.chromium.org/118100

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@18236 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 13 insertions, 2 deletions

diff --git a/net/proxy/proxy_service.cc b/net/proxy/proxy_service.cc
index 65db636..3a0cd7f 100644
--- a/net/proxy/proxy_service.cc
+++ b/net/proxy/proxy_service.cc
@@ -23,6 +23,7 @@
 #endif
 #include "net/proxy/proxy_resolver.h"
 #include "net/proxy/proxy_resolver_v8.h"
+#include "net/url_request/url_request_context.h"
 
 using base::TimeDelta;
 using base::TimeTicks;
@@ -217,8 +218,18 @@ ProxyService* ProxyService::Create(
       new ProxyConfigServiceFixed(*pc) :
       CreateSystemProxyConfigService(io_loop);
 
-  ProxyResolver* proxy_resolver = use_v8_resolver ?
-      new ProxyResolverV8() : CreateNonV8ProxyResolver();
+  ProxyResolver* proxy_resolver;
+
+  if (use_v8_resolver) {
+    // Send javascript errors and alerts to LOG(INFO).
+    HostResolver* host_resolver = url_request_context->host_resolver();
+    ProxyResolverV8::JSBindings* js_bindings =
+        ProxyResolverV8::CreateDefaultBindings(host_resolver, io_loop);
+
+    proxy_resolver = new ProxyResolverV8(js_bindings);
+  } else {
+    proxy_resolver = CreateNonV8ProxyResolver();
+  }
 
   ProxyService* proxy_service = new ProxyService(
       proxy_config_service, proxy_resolver);