Add full support for filesystem URLs.

chrome/common/extensions/url_pattern.cc

Index: chrome/common/extensions/url_pattern.cc
diff --git a/chrome/common/extensions/url_pattern.cc b/chrome/common/extensions/url_pattern.cc
index ac648114aaed54e93ec873b92dbd71afe384ae42..c0b04b7cf6eceb963b0693720c35d305849e8300 100644
--- a/chrome/common/extensions/url_pattern.cc
+++ b/chrome/common/extensions/url_pattern.cc
@@ -97,12 +97,14 @@ bool IsValidPortForScheme(const std::string scheme, const std::string& port) {
 URLPattern::URLPattern()
     : valid_schemes_(SCHEME_NONE),
       match_all_urls_(false),
+      partial_filesystem_support_hack_(false),
       match_subdomains_(false),
       port_("*") {}
 
 URLPattern::URLPattern(int valid_schemes)
     : valid_schemes_(valid_schemes),
       match_all_urls_(false),
+      partial_filesystem_support_hack_(false),
       match_subdomains_(false),
       port_("*") {}
 
@@ -111,6 +113,7 @@ URLPattern::URLPattern(int valid_schemes, const std::string& pattern)
     // appropriate when we know |pattern| is valid.
     : valid_schemes_(valid_schemes),
       match_all_urls_(false),
+      partial_filesystem_support_hack_(false),
       match_subdomains_(false),
       port_("*") {
   if (PARSE_SUCCESS != Parse(pattern))
@@ -295,14 +298,27 @@ bool URLPattern::SetPort(const std::string& port) {
 }
 
 bool URLPattern::MatchesURL(const GURL& test) const {
-  if (!MatchesScheme(test.scheme()))
+  const GURL* test_url = &test;
+  bool has_inner_url = test.inner_url() != NULL;
+
+  if (partial_filesystem_support_hack_ != has_inner_url)
+    return false;
+
+  if (has_inner_url)
+    test_url = test.inner_url();
+
+  if (!MatchesScheme(test_url->scheme()))
     return false;
 
   if (match_all_urls_)
     return true;
 
-  return MatchesSecurityOriginHelper(test) &&
-         MatchesPath(test.PathForRequest());
+  std::string path_for_request = test.PathForRequest();
+  if (has_inner_url)
+    path_for_request = test_url->path() + path_for_request;
+
+  return MatchesSecurityOriginHelper(*test_url) &&
+         MatchesPath(path_for_request);
 }
 
 bool URLPattern::MatchesSecurityOrigin(const GURL& test) const {
@@ -433,6 +449,10 @@ bool URLPattern::OverlapsWith(const URLPattern& other) const {
   DCHECK(path_.find('*') == path_.size() - 1);
   DCHECK(other.path().find('*') == other.path().size() - 1);
 
+  if (partial_filesystem_support_hack_ !=
+      other.partial_filesystem_support_hack())
+    return false;
+
   if (!MatchesPath(other.path().substr(0, other.path().size() - 1)) &&
       !other.MatchesPath(path_.substr(0, path_.size() - 1)))
     return false;