Update to Chromium revision cb947c01 (#352221)

- Implement CefRequestHandler::OnBeforeBrowse using NavigationThrottle
  instead of ResourceThrottle (see http://crbug.com/537634). The CefRequest
  object passed to OnBeforeBrowse will no longer have an associated request
  identifier.
- Mac: Remove additional helper apps which are no longer required (see
  http://crbug.com/520680)
- Remove the UR_FLAG_REPORT_RAW_HEADERS flag which is no longer supported (see
  http://crbug.com/517114)
- Remove the CefBrowserSettings.java parameter. Java is an NPAPI plugin and
  NPAPI plugins are no longer supported (see http://crbug.com/470301#c11)
- Add CefFormatUrlForSecurityDisplay function in cef_parser.h
- Fix crash when passing `--disable-extensions` command-line flag (issue #1721)
- Linux: Fix NSS handler loading (issue #1727)

libcef/common/extensions/extensions_client.cc

@@ -45,13 +45,13 @@ class CefPermissionMessageProvider : public PermissionMessageProvider {
   ~CefPermissionMessageProvider() override {}
 
   // PermissionMessageProvider implementation.
-  CoalescedPermissionMessages GetPermissionMessages(
+  PermissionMessages GetPermissionMessages(
       const PermissionIDSet& permissions) const override {
-    return CoalescedPermissionMessages();
+    return PermissionMessages();
   }
 
-  bool IsPrivilegeIncrease(const PermissionSet* old_permissions,
-                           const PermissionSet* new_permissions,
+  bool IsPrivilegeIncrease(const PermissionSet& old_permissions,
+                           const PermissionSet& new_permissions,
                            Manifest::Type extension_type) const override {
     // Ensure we implement this before shipping.
     CHECK(false);
@@ -59,7 +59,7 @@ class CefPermissionMessageProvider : public PermissionMessageProvider {
   }
 
   PermissionIDSet GetAllPermissionIDs(
-      const PermissionSet* permissions,
+      const PermissionSet& permissions,
       Manifest::Type extension_type) const override {
     return PermissionIDSet();
   }