Add full support for filesystem URLs.

chrome/common/content_settings_pattern.cc

Index: chrome/common/content_settings_pattern.cc
diff --git a/chrome/common/content_settings_pattern.cc b/chrome/common/content_settings_pattern.cc
index 16ec56f00b10bd7c027f891a30eb6cfd7ac02e6c..e8fc1dbb894a08d9625b1bc10f25f271653405b9 100644
--- a/chrome/common/content_settings_pattern.cc
+++ b/chrome/common/content_settings_pattern.cc
@@ -303,28 +303,33 @@ ContentSettingsPattern ContentSettingsPattern::FromURL(
   scoped_ptr<ContentSettingsPattern::BuilderInterface> builder(
       ContentSettingsPattern::CreateBuilder(false));
 
-  if (url.SchemeIsFile()) {
-    builder->WithScheme(url.scheme())->WithPath(url.path());
+  const GURL* local_url = &url;
+  if (url.SchemeIsFileSystem() && url.inner_url()) {
+    local_url = url.inner_url();
+  }
+  if (local_url->SchemeIsFile()) {
+    builder->WithScheme(local_url->scheme())->WithPath(local_url->path());
   } else {
     // Please keep the order of the ifs below as URLs with an IP as host can
     // also have a "http" scheme.
-    if (url.HostIsIPAddress()) {
-      builder->WithScheme(url.scheme())->WithHost(url.host());
-    } else if (url.SchemeIs(chrome::kHttpScheme)) {
-      builder->WithSchemeWildcard()->WithDomainWildcard()->WithHost(url.host());
-    } else if (url.SchemeIs(chrome::kHttpsScheme)) {
-      builder->WithScheme(url.scheme())->WithDomainWildcard()->WithHost(
-          url.host());
+    if (local_url->HostIsIPAddress()) {
+      builder->WithScheme(local_url->scheme())->WithHost(local_url->host());
+    } else if (local_url->SchemeIs(chrome::kHttpScheme)) {
+      builder->WithSchemeWildcard()->WithDomainWildcard()->WithHost(
+          local_url->host());
+    } else if (local_url->SchemeIs(chrome::kHttpsScheme)) {
+      builder->WithScheme(local_url->scheme())->WithDomainWildcard()->WithHost(
+          local_url->host());
     } else {
       // Unsupported scheme
     }
-    if (url.port().empty()) {
-      if (url.SchemeIs(chrome::kHttpsScheme))
+    if (local_url->port().empty()) {
+      if (local_url->SchemeIs(chrome::kHttpsScheme))
         builder->WithPort(GetDefaultPort(chrome::kHttpsScheme));
       else
         builder->WithPortWildcard();
     } else {
-      builder->WithPort(url.port());
+      builder->WithPort(local_url->port());
     }
   }
   return builder->Build();
@@ -336,14 +341,18 @@ ContentSettingsPattern ContentSettingsPattern::FromURLNoWildcard(
   scoped_ptr<ContentSettingsPattern::BuilderInterface> builder(
       ContentSettingsPattern::CreateBuilder(false));
 
-  if (url.SchemeIsFile()) {
-    builder->WithScheme(url.scheme())->WithPath(url.path());
+  const GURL* local_url = &url;
+  if (url.SchemeIsFileSystem() && url.inner_url()) {
+    local_url = url.inner_url();
+  }
+  if (local_url->SchemeIsFile()) {
+    builder->WithScheme(local_url->scheme())->WithPath(local_url->path());
   } else {
-    builder->WithScheme(url.scheme())->WithHost(url.host());
-    if (url.port().empty()) {
-      builder->WithPort(GetDefaultPort(url.scheme()));
+    builder->WithScheme(local_url->scheme())->WithHost(local_url->host());
+    if (local_url->port().empty()) {
+      builder->WithPort(GetDefaultPort(local_url->scheme()));
     } else {
-      builder->WithPort(url.port());
+      builder->WithPort(local_url->port());
     }
   }
   return builder->Build();
@@ -403,8 +412,13 @@ bool ContentSettingsPattern::Matches(
   if (!is_valid_)
     return false;
 
+  const GURL* local_url = &url;
+  if (url.SchemeIsFileSystem() && url.inner_url()) {
+    local_url = url.inner_url();
+  }
+
   // Match the scheme part.
-  const std::string scheme(url.scheme());
+  const std::string scheme(local_url->scheme());
   if (!parts_.is_scheme_wildcard &&
       parts_.scheme != scheme) {
     return false;
@@ -413,16 +427,18 @@ bool ContentSettingsPattern::Matches(
   // File URLs have no host. For file URLs check if the url path matches the
   // path in the pattern.
   // TODO(markusheintz): This should change in the future. There should be only
-  // one setting for all file URLs. So the path should be ignored.
+  // one setting for all file URLs. So the path should be ignored.  It's wrong
+  // for filesystem:file URLs too--those paths are in different namespaces
+  // than those of file:// URLs.

[markusheintz_, 2011/12/21 10:36:44]

I don't understand this comment. What exactly is wrong?

I think it would be great to just have one setting for the origin file:/// since
they come from the same host.

   if (!parts_.is_scheme_wildcard &&
       scheme == std::string(chrome::kFileScheme)) {
-    if (parts_.path == std::string(url.path()))
+    if (parts_.path == std::string(local_url->path()))
       return true;
     return false;
   }
 
   // Match the host part.
-  const std::string host(net::TrimEndingDot(url.host()));
+  const std::string host(net::TrimEndingDot(local_url->host()));
   if (!parts_.has_domain_wildcard) {
     if (parts_.host != host)
       return false;
@@ -436,7 +452,7 @@ bool ContentSettingsPattern::Matches(
     return true;
 
   // Match the port part.
-  std::string port(url.port());
+  std::string port(local_url->port());
 
   // Use the default port if the port string is empty. GURL returns an empty
   // string if no port at all was specified or if the default port was