Make "Learn more" button bigger in the Page Info View.

ios/chrome/browser/ui/omnibox/page_info_view_controller.mm

Index: ios/chrome/browser/ui/omnibox/page_info_view_controller.mm
diff --git a/ios/chrome/browser/ui/omnibox/page_info_view_controller.mm b/ios/chrome/browser/ui/omnibox/page_info_view_controller.mm
index e977b05e787d5a11c536b7c0ffb6325747d7e77e..06fc3330177008c1efd3e5d660fdd6632c17e0c0 100644
--- a/ios/chrome/browser/ui/omnibox/page_info_view_controller.mm
+++ b/ios/chrome/browser/ui/omnibox/page_info_view_controller.mm
@@ -508,6 +508,9 @@ void PageInfoModelBubbleBridge::OnPageInfoModelChanged() {
   CGSize sizeWithFont =
       [[[button titleLabel] text] cr_pixelAlignedSizeWithFont:font];
   frame.size = sizeWithFont;
+  // According to iOS Human Interface Guidelines, minimal size of UIButton
+  // should be 44x44.
+  frame.size.height = std::max<CGFloat>(44, frame.size.height);
 
   [button setFrame:frame];