[ios] Fix Share button in tools menu.

CL 563307 didn't add taget/action for the share button on the tools
menu, which meant that the share button (and thus: printing and reading
list) didn't work.

This CL fixes that, by adding the two add/remove target/action calls
that should have been there in the first place.

Bug: 73881
Change-Id: Ia3c90b8c6175cb3038f321636ef467efecc3cbfb
Reviewed-on: https://chromium-review.googlesource.com/565498
Commit-Queue: Mark Cogan <marq@chromium.org>
Reviewed-by: Jean-François Geyelin <jif@chromium.org>
Cr-Commit-Position: refs/heads/master@{#485288}

ios/chrome/browser/ui/tools_menu/tools_menu_view_controller.mm

@@ -472,6 +472,9 @@ NS_INLINE void AnimateInViews(NSArray* views,
   [toolsCell.reloadButton removeTarget:self.dispatcher
                                 action:@selector(reload)
                       forControlEvents:UIControlEventTouchUpInside];
+  [toolsCell.shareButton removeTarget:self.dispatcher
+                               action:@selector(sharePage)
+                     forControlEvents:UIControlEventTouchUpInside];
   [toolsCell.starButton removeTarget:self.dispatcher
                               action:@selector(bookmarkPage)
                     forControlEvents:UIControlEventTouchUpInside];
@@ -595,6 +598,9 @@ NS_INLINE void AnimateInViews(NSArray* views,
     [cell.reloadButton addTarget:self.dispatcher
                           action:@selector(reload)
                 forControlEvents:UIControlEventTouchUpInside];
+    [cell.shareButton addTarget:self.dispatcher
+                         action:@selector(sharePage)
+               forControlEvents:UIControlEventTouchUpInside];
     [cell.starButton addTarget:self.dispatcher
                         action:@selector(bookmarkPage)
               forControlEvents:UIControlEventTouchUpInside];