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

ios/chrome/widget_extension/widget_view.h

Index: ios/chrome/widget_extension/widget_view.h
diff --git a/ios/chrome/widget_extension/widget_view.h b/ios/chrome/widget_extension/widget_view.h
index 9e2ff3857c47c8f53740fe8aba20225f592ca5f3..6b6bd57d044b2861dd173abcfadc6ef507b5f9c9 100644
--- a/ios/chrome/widget_extension/widget_view.h
+++ b/ios/chrome/widget_extension/widget_view.h
@@ -11,8 +11,16 @@
 // 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 URL section.
+- (void)openCopiedURL:(id)sender;
 
 @end
 
@@ -27,6 +35,9 @@
 - (instancetype)initWithFrame:(CGRect)frame NS_UNAVAILABLE;
 - (instancetype)initWithCoder:(NSCoder*)aDecoder NS_UNAVAILABLE;
 
+// Updates the copied URL.
+- (void)updateCopiedURL:(NSString*)copiedURL;
+
 @end
 
 #endif  // IOS_CHROME_WIDGET_EXTENSION_WIDGET_VIEW_H_