Moves overscroll code out of the ios_internal namespace.

ios/chrome/browser/ui/browser_view_controller.mm

 // Copyright 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.
 
 #import "ios/chrome/browser/ui/browser_view_controller.h"
 
 #import <AssetsLibrary/AssetsLibrary.h>
 #import <MobileCoreServices/MobileCoreServices.h>
 #import <PassKit/PassKit.h>
 #import <Photos/Photos.h>
@@ skipping 2734 matching lines @@
 
 #pragma mark - Install OverScrollActionController method.
 - (void)setOverScrollActionControllerToStaticNativeContent:
     (StaticHtmlNativeContent*)nativeContent {
   if (!IsIPadIdiom() && !FirstRun::IsChromeFirstRun()) {
     OverscrollActionsController* controller =
         [[[OverscrollActionsController alloc]
             initWithScrollView:[nativeContent scrollView]] autorelease];
     [[nativeContent scrollView] setDelegate:controller];
     [controller setDelegate:self];
-    ios_internal::OverscrollStyle style =
-        _isOffTheRecord
-            ? ios_internal::OverscrollStyle::REGULAR_PAGE_INCOGNITO
-            : ios_internal::OverscrollStyle::REGULAR_PAGE_NON_INCOGNITO;
+    OverscrollStyle style = _isOffTheRecord
+                                ? OverscrollStyle::REGULAR_PAGE_INCOGNITO
+                                : OverscrollStyle::REGULAR_PAGE_NON_INCOGNITO;
     controller.style = style;
     nativeContent.overscrollActionsController = controller;
   }
 }
 
 #pragma mark - OverscrollActionsControllerDelegate methods.
 
 - (void)overscrollActionsController:(OverscrollActionsController*)controller
-                   didTriggerAction:(ios_internal::OverscrollAction)action {
+                   didTriggerAction:(OverscrollAction)action {
   switch (action) {
-    case ios_internal::OverscrollAction::NEW_TAB:
+    case OverscrollAction::NEW_TAB:
       [self newTab:nil];
       break;
-    case ios_internal::OverscrollAction::CLOSE_TAB:
+    case OverscrollAction::CLOSE_TAB:
       [self closeCurrentTab];
       break;
-    case ios_internal::OverscrollAction::REFRESH:
+    case OverscrollAction::REFRESH:
       if ([[[_model currentTab] webController] loadPhase] ==
           web::PAGE_LOADING) {
         [[_model currentTab] stopLoading];
       }
       [[_model currentTab] reload];
       break;
-    case ios_internal::OverscrollAction::NONE:
+    case OverscrollAction::NONE:
       NOTREACHED();
       break;
   }
 }
 
 - (BOOL)shouldAllowOverscrollActions {
   return YES;
 }
 
 - (UIView*)headerView {
@@ skipping 2305 matching lines @@
 
 - (UIView*)voiceSearchButton {
   return _voiceSearchButton;
 }
 
 - (id<LogoAnimationControllerOwner>)logoAnimationControllerOwner {
   return [self currentLogoAnimationControllerOwner];
 }
 
 @end