- Add cache awareness to CefURLRequest (issue #2283)

- Properly set referer values on server requests (issue #2278)

include/internal/cef_types.h

@@ -1222,15 +1222,26 @@ typedef enum {
   UR_FLAG_NONE = 0,
 
   ///
-  // If set the cache will be skipped when handling the request.
+  // If set the cache will be skipped when handling the request. Setting this
+  // value is equivalent to specifying the "Cache-Control: no-cache" request
+  // header. Setting this value in combination with UR_FLAG_ONLY_FROM_CACHE will
+  // cause the request to fail.
   ///
   UR_FLAG_SKIP_CACHE = 1 << 0,
 
+  ///
+  // If set the request will fail if it cannot be served from the cache (or some
+  // equivalent local store). Setting this value is equivalent to specifying the
+  // "Cache-Control: only-if-cached" request header. Setting this value in
+  // combination with UR_FLAG_SKIP_CACHE will cause the request to fail.
+  ///
+  UR_FLAG_ONLY_FROM_CACHE = 1 << 1,
+
   ///
   // If set user name, password, and cookies may be sent with the request, and
   // cookies may be saved from the response.
   ///
-  UR_FLAG_ALLOW_CACHED_CREDENTIALS = 1 << 1,
+  UR_FLAG_ALLOW_STORED_CREDENTIALS = 1 << 2,
 
   ///
   // If set upload progress events will be generated when a request has a body.
@@ -1240,14 +1251,14 @@ typedef enum {
   ///
   // If set the CefURLRequestClient::OnDownloadData method will not be called.
   ///
-  UR_FLAG_NO_DOWNLOAD_DATA = 1 << 6,
+  UR_FLAG_NO_DOWNLOAD_DATA = 1 << 4,
 
   ///
   // If set 5XX redirect errors will be propagated to the observer instead of
   // automatically re-tried. This currently only applies for requests
   // originated in the browser process.
   ///
-  UR_FLAG_NO_RETRY_ON_5XX = 1 << 7,
+  UR_FLAG_NO_RETRY_ON_5XX = 1 << 5,
 } cef_urlrequest_flags_t;
 
 ///