Allow ProxyConfigService to report "no configuration set"

Introduce a ConfigAvailability enum such that ProxyConfigService is able to return configuration status at a finer granularity level. This allows to fall back to default values (potentially configured through policy) if the system service doesn't have configuration.

BUG=none
TEST=unit tests, recommended proxy policy works on CrOS.

Review URL: http://codereview.chromium.org/6597070

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@81085 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 4 insertions, 2 deletions

diff --git a/net/proxy/proxy_config_service_linux.h b/net/proxy/proxy_config_service_linux.h
index 5435226..2f1ad0c 100644
--- a/net/proxy/proxy_config_service_linux.h
+++ b/net/proxy/proxy_config_service_linux.h
@@ -144,7 +144,8 @@ class ProxyConfigServiceLinux : public ProxyConfigService {
     // Called from IO thread.
     void AddObserver(Observer* observer);
     void RemoveObserver(Observer* observer);
-    bool GetLatestProxyConfig(ProxyConfig* config);
+    ProxyConfigService::ConfigAvailability GetLatestProxyConfig(
+        ProxyConfig* config);
 
     // Posts a call to OnDestroy() to the UI thread. Called from
     // ProxyConfigServiceLinux's destructor.
@@ -239,7 +240,8 @@ class ProxyConfigServiceLinux : public ProxyConfigService {
   // Called from IO thread.
   virtual void AddObserver(Observer* observer);
   virtual void RemoveObserver(Observer* observer);
-  virtual bool GetLatestProxyConfig(ProxyConfig* config);
+  virtual ProxyConfigService::ConfigAvailability GetLatestProxyConfig(
+      ProxyConfig* config);
 
  private:
   scoped_refptr<Delegate> delegate_;