Add support in widget to open search modes + copied link in app.

ios/chrome/widget_extension/widget_view.mm

 // Copyright 2017 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/widget_extension/widget_view.h"
 
 #include "base/logging.h"
 
 #if !defined(__has_feature) || !__has_feature(objc_arc)
 #error "This file requires ARC support."
 #endif
 
 namespace {
 
 const CGFloat kCursorHeight = 40;
 const CGFloat kCursorWidth = 2;
 const CGFloat kCursorHorizontalPadding = 10;
 const CGFloat kCursorVerticalPadding = 10;
 const CGFloat kFakeboxHorizontalPadding = 40;
 const CGFloat kFakeboxVerticalPadding = 40;
 
 }  // namespace
 
 @interface WidgetView () {
   __weak id<WidgetViewActionTarget> _target;
 }
 
+@property(nonatomic, copy) NSString* copiedURL;
+@property(nonatomic, strong) UILabel* copiedURLLabel;
 @property(nonatomic, weak) UIView* cursor;
 
 // Creates and adds a fake omnibox with blinking cursor to the view and sets the
 // class cursor property.
 - (void)addFakebox;
 
 @end
 
 @implementation WidgetView
 
+@synthesize copiedURL = _copiedURL;
+@synthesize copiedURLLabel = _copiedURLLabel;
+
 @synthesize cursor = _cursor;
 
 - (instancetype)initWithActionTarget:(id<WidgetViewActionTarget>)target {
   self = [super initWithFrame:CGRectZero];
   if (self) {
     DCHECK(target);
     _target = target;
     [self addFakebox];
   }
   return self;
 }
 
 - (void)addFakebox {
   UIView* fakebox = [[UIView alloc] initWithFrame:CGRectZero];
 
   UIGestureRecognizer* tapRecognizer =
       [[UITapGestureRecognizer alloc] initWithTarget:_target
-                                              action:@selector(openApp:)];
+                                              action:@selector(openSearch:)];
 
   [fakebox addGestureRecognizer:tapRecognizer];
   [self addSubview:fakebox];
 
   UIView* cursor = [[UIView alloc] initWithFrame:CGRectZero];
   self.cursor = cursor;
   self.cursor.backgroundColor = [UIColor blueColor];
   [fakebox addSubview:self.cursor];
 
   [fakebox setTranslatesAutoresizingMaskIntoConstraints:NO];
@@ skipping 20 matching lines @@
   [UIView animateWithDuration:0.3
                         delay:0.0
                       options:UIViewAnimationOptionRepeat |
                               UIViewAnimationOptionAutoreverse
                    animations:^{
                      self.cursor.alpha = 0.0f;
                    }
                    completion:nil];
 }
 
+- (void)updateCopiedURL:(NSString*)copiedURL {
+  self.copiedURL = copiedURL;
+  self.copiedURLLabel.text = copiedURL;
+}
+
 @end