Upstream "nsurl_util.{h,mm}" from Chrome on iOS repository.

base/mac/sdk_forward_declarations.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // This file contains forward declarations for items in later SDKs than the
 // default one with which Chromium is built (currently 10.6).
 // If you call any function from this header, be sure to check at runtime for
 // respondsToSelector: before calling these functions (else your code will crash
 // on older OS X versions that chrome still supports).
 
@@ skipping 14 matching lines @@
   NSEventPhaseNone        = 0, // event not associated with a phase.
   NSEventPhaseBegan       = 0x1 << 0,
   NSEventPhaseStationary  = 0x1 << 1,
   NSEventPhaseChanged     = 0x1 << 2,
   NSEventPhaseEnded       = 0x1 << 3,
   NSEventPhaseCancelled   = 0x1 << 4
 };
 typedef NSUInteger NSEventPhase;
 
 enum {
+  NSRegularExpressionSearch = 1024,
+};
+
+enum {
   NSFullScreenWindowMask = 1 << 14,
 };
 
 enum {
   NSApplicationPresentationFullScreen = 1 << 10,
 };
 
 enum {
   NSWindowCollectionBehaviorFullScreenPrimary = 1 << 7,
   NSWindowCollectionBehaviorFullScreenAuxiliary = 1 << 8,
@@ skipping 291 matching lines @@
 
 @end
 
 BASE_EXPORT extern "C" NSString* const NSUserActivityTypeBrowsingWeb;
 
 BASE_EXPORT extern "C" NSString* const NSAppearanceNameVibrantDark;
 
 #endif  // MAC_OS_X_VERSION_10_10
 
 #endif  // BASE_MAC_SDK_FORWARD_DECLARATIONS_H_