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

ios/chrome/widget_extension/widget_view.h

 // 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.
 
 #ifndef IOS_CHROME_WIDGET_EXTENSION_WIDGET_VIEW_H_
 #define IOS_CHROME_WIDGET_EXTENSION_WIDGET_VIEW_H_
 
 #import <UIKit/UIKit.h>
 
 // Protocol to be implemented by targets for user actions coming from the widget
 // view.
 @protocol WidgetViewActionTarget
 
-// Called when the user taps the fake omnibox.
-- (void)openApp:(id)sender;
+// Called when the user taps the Search button.
+- (void)openSearch:(id)sender;
+// Called when the user taps the Incognito Search button.
+- (void)openIncognito:(id)sender;
+// Called when the user taps the Voice Search button.
+- (void)openVoice:(id)sender;
+// Called when the user taps the QR Code button.
+- (void)openQRCode:(id)sender;
+// Called when the user taps the Open Copied Link section.
+- (void)openCopiedLink:(id)sender;
 
 @end
 
-// View for the widget. Shows a blinking cursor for a fake omnibox and calls the
-// target when tapped.
+// View for the widget. Shows a set of buttons to open the main application in
+// various search modes (regular, incognito, voice, qr code) and optionally a
+// larger area to open the currently copied URL.

[lody, 2017/04/11 12:56:01]

This is a premature comment! I'll revert it in a patchset.

[lody, 2017/04/11 14:38:18]

Done.

 @interface WidgetView : UIView
 
 // Designated initializer, creates the widget view with a |target| for user
 // actions.
 - (instancetype)initWithActionTarget:(id<WidgetViewActionTarget>)target
     NS_DESIGNATED_INITIALIZER;
 - (instancetype)initWithFrame:(CGRect)frame NS_UNAVAILABLE;
 - (instancetype)initWithCoder:(NSCoder*)aDecoder NS_UNAVAILABLE;
 
+// Updates the copied URL.

[lpromero, 2017/04/11 13:24:03]

Above you call it Copied Link. Is it the same concept?

[lody, 2017/04/11 14:38:18]

Done.

+- (void)updateCopiedURL:(NSString*)copiedURL;

[lpromero, 2017/04/11 13:24:03]

Can you add unit tests?
You could also add Earl Grey unit tests by adding your view to Showcase:
https://chromium.googlesource.com/chromium/src/+/master/ios/showcase/README.m...

[lody, 2017/04/11 14:38:18]

I will look at adding unit tests in a patch set (for earl grey I'll look into it
when I submit the UI CL).

+
 @end
 
 #endif  // IOS_CHROME_WIDGET_EXTENSION_WIDGET_VIEW_H_