Call CreateExampleView also for extra examples

Since ContainerView was eliminated here:
https://chromium-review.googlesource.com/c/chromium/src/+/1644758,
manual call of CreateExampleView is required now.
But for extra examples it is not called.

BUG=1026180

Change-Id: I891c6099ff742110b62d870236acfcc25039579a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1926131Reviewed-by: Peter Kasting <pkasting@chromium.org>
Commit-Queue: Peter Kasting <pkasting@chromium.org>
Cr-Commit-Position: refs/heads/master@{#719057}

ui/views/examples/examples_window.cc

@@ -90,9 +90,6 @@ ExampleVector CreateExamples() {
   examples.push_back(std::make_unique<TreeViewExample>());
   examples.push_back(std::make_unique<VectorExample>());
   examples.push_back(std::make_unique<WidgetExample>());
-
-  for (auto& example : examples)
-    example->CreateExampleView(example->example_view());
   return examples;
 }
 
@@ -107,6 +104,9 @@ ExampleVector GetExamplesToShow(ExampleVector extra) {
   ExampleVector examples = CreateExamples();
   std::move(extra.begin(), extra.end(), std::back_inserter(examples));
   std::sort(examples.begin(), examples.end(), ExampleTitleCompare());
+
+  for (auto& example : examples)
+    example->CreateExampleView(example->example_view());
   return examples;
 }