Add rich entity suggestion to showcase

Currently, this doesn't do much because showcase has no way to fetch the
image, but the URL is there just in case.

Bug: 966429
Change-Id: I34f7bf7a329e60774c7ca314994e86123dae451d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1627374
Commit-Queue: Robbie Gibson <rkgibson@google.com>
Reviewed-by: Mark Cogan <marq@chromium.org>
Cr-Commit-Position: refs/heads/master@{#663083}

ios/showcase/omnibox_popup/fake_autocomplete_suggestion.h

@@ -74,6 +74,9 @@
 // Suggestion for calculator.
 + (instancetype)calculatorSuggestion;
 
+// Suggestion for a rich entity (entity with image).
++ (instancetype)richEntitySuggestion;
+
 @end
 
 #endif  // IOS_SHOWCASE_OMNIBOX_POPUP_FAKE_AUTOCOMPLETE_SUGGESTION_H_

ios/showcase/omnibox_popup/fake_autocomplete_suggestion.mm

@@ -513,4 +513,22 @@ NSAttributedString* calculatorText() {
   return suggestion;
 }
 
++ (instancetype)richEntitySuggestion {
+  FakeAutocompleteSuggestion* suggestion =
+      [[FakeAutocompleteSuggestion alloc] init];
+  suggestion.text = textString(@"Avengers : Endgame");
+  suggestion.detailText = detailTextString(@"Film (2019)");
+  // The image currently doesn't display because there is no fake
+  // Image Retriever, but leaving this here in case this is ever necessary.
+  GURL imageURL = GURL("https://encrypted-tbn0.gstatic.com/"
+                       "images?q=tbn:ANd9GcRl35jshKCRWt76yUSKh5r0_"
+                       "BRbWuSU1uZOCGnzq95nJ8yXUg913LciCgz-s3reyfACsrAAYg");
+  suggestion.icon =
+      [[SimpleOmniboxIcon alloc] initWithIconType:OmniboxIconTypeImage
+                               suggestionIconType:SEARCH
+                                         isAnswer:NO
+                                         imageURL:imageURL];
+  return suggestion;
+}
+
 @end

ios/showcase/omnibox_popup/sc_omnibox_popup_mediator.mm

@@ -48,6 +48,7 @@
     [FakeAutocompleteSuggestion currencySuggestion],
     [FakeAutocompleteSuggestion translateSuggestion],
     [FakeAutocompleteSuggestion calculatorSuggestion],
+    [FakeAutocompleteSuggestion richEntitySuggestion],
   ];
 
   [self.consumer updateMatches:suggestions withAnimation:YES];