Expose thumbnails of pages to iOS share extensions.

ios/chrome/browser/ui/browser_view_controller_unittest.mm

Index: ios/chrome/browser/ui/browser_view_controller_unittest.mm
diff --git a/ios/chrome/browser/ui/browser_view_controller_unittest.mm b/ios/chrome/browser/ui/browser_view_controller_unittest.mm
index d31d8ee75a3f4bd1ea02fdc9ffc5338ac783c37e..0dae5c0d53da4f58cbad64a6b8d58dcb9c222285 100644
--- a/ios/chrome/browser/ui/browser_view_controller_unittest.mm
+++ b/ios/chrome/browser/ui/browser_view_controller_unittest.mm
@@ -406,13 +406,19 @@ TEST_F(BrowserViewControllerTest, TestSharePageCommandHandling) {
   NSString* expectedTitle = @"title";
   [(BVCTestTabMock*)tab_.get() setUrl:expectedUrl];
   OCMockObject* tabMock = (OCMockObject*)tab_.get();
+  ios::ChromeBrowserState* ptr = chrome_browser_state_.get();
+  [[[tabMock stub] andReturnValue:OCMOCK_VALUE(ptr)] browserState];
   [[[tabMock stub] andReturn:expectedTitle] title];
   [[[tabMock stub] andReturn:expectedTitle] originalTitle];
+
   base::scoped_nsobject<ShareToData> expectedShareData([[ShareToData alloc]
-          initWithURL:expectedUrl
-                title:expectedTitle
-      isOriginalTitle:YES
-      isPagePrintable:YES]);
+             initWithURL:expectedUrl
+                   title:expectedTitle
+         isOriginalTitle:YES
+         isPagePrintable:NO
+      thumbnailGenerator:^UIImage*(CGSize const&) {
+        return nil;
+      }]);
   OCMockObject* shareControllerMock = (OCMockObject*)shareController_.get();
   // Passing non zero/nil |fromRect| and |inView| parameters to satisfy protocol
   // requirements.