1 files changed, 29 insertions, 0 deletions
diff --git a/chrome/common/extensions/chrome_extensions_client.cc b/chrome/common/extensions/chrome_extensions_client.cc
index 3fa2135..fbebb8c 100644
--- a/chrome/common/extensions/chrome_extensions_client.cc
+++ b/chrome/common/extensions/chrome_extensions_client.cc
@@ -6,6 +6,13 @@
 
 #include "chrome/common/extensions/chrome_manifest_handlers.h"
 #include "chrome/common/extensions/features/base_feature_provider.h"
+#include "chrome/common/url_constants.h"
+#include "content/public/common/url_constants.h"
+#include "extensions/common/permissions/permission_message.h"
+#include "extensions/common/url_pattern_set.h"
+#include "grit/generated_resources.h"
+#include "ui/base/l10n/l10n_util.h"
+#include "url/gurl.h"
 
 namespace extensions {
 
@@ -33,6 +40,28 @@ void ChromeExtensionsClient::RegisterManifestHandlers() const {
   RegisterChromeManifestHandlers();
 }
 
+void ChromeExtensionsClient::FilterHostPermissions(
+    const URLPatternSet& hosts,
+    URLPatternSet* new_hosts,
+    std::set<PermissionMessage>* messages) const {
+  for (URLPatternSet::const_iterator i = hosts.begin();
+       i != hosts.end(); ++i) {
+    // Filters out every URL pattern that matches chrome:// scheme.
+    if (i->scheme() == chrome::kChromeUIScheme) {
+      // chrome://favicon is the only URL for chrome:// scheme that we
+      // want to support. We want to deprecate the "chrome" scheme.
+      // We should not add any additional "host" here.
+      if (GURL(chrome::kChromeUIFaviconURL).host() != i->host())
+        continue;
+      messages->insert(PermissionMessage(
+          PermissionMessage::kFavicon,
+          l10n_util::GetStringUTF16(IDS_EXTENSION_PROMPT_WARNING_FAVICON)));
+    } else {
+      new_hosts->AddPattern(*i);
+    }
+  }
+}
+
 // static
 ChromeExtensionsClient* ChromeExtensionsClient::GetInstance() {
   return g_client.Pointer();