[OSX, WebIntents] Display suggestions label, unless there are no suggestions.

chrome/browser/ui/cocoa/web_intent_sheet_controller_unittest.mm

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #import "chrome/browser/ui/cocoa/web_intent_sheet_controller.h"
 
 #include "base/memory/scoped_nsobject.h"
 #import "chrome/browser/ui/cocoa/cocoa_test_helper.h"
 #import "chrome/browser/ui/cocoa/hover_close_button.h"
 #import "chrome/browser/ui/cocoa/hyperlink_button_cell.h"
@@ skipping 99 matching lines @@
 TEST_F(WebIntentPickerSheetControllerTest, SuggestionView) {
   WebIntentPickerModel model;
 
   model.AddSuggestedExtension(string16(), string16(), 2.5);
   [controller_ performLayoutWithModel:&model];
 
   // Get subviews.
   NSArray* flip_views = [[window_ contentView] subviews];
   NSArray* main_views = [[flip_views objectAtIndex:0] subviews];
 
-  // 4th object should be the suggestion view.
+  // 3rd object should be the suggestion view.
   ASSERT_TRUE([main_views count] > 2);
   ASSERT_TRUE([[main_views objectAtIndex:2] isKindOfClass:[NSView class]]);
   NSView* suggest_view = [main_views objectAtIndex:2];
 
-  // There is exactly one subview, which contains the suggested item.
-  ASSERT_EQ(1U, [[suggest_view subviews] count]);
+  // There are two subviews - label & suggested items.
+  ASSERT_EQ(2U, [[suggest_view subviews] count]);
+  ASSERT_TRUE([[[suggest_view subviews] objectAtIndex:1]
+      isKindOfClass:[NSTextField class]]);
   ASSERT_TRUE([[[suggest_view subviews] objectAtIndex:0]
       isKindOfClass:[NSView class]]);
   NSView* item_view = [[suggest_view subviews] objectAtIndex:0];
 
   // 5 subobjects - Icon, title, star rating, add button, and throbber.
   ASSERT_EQ(5U, [[item_view subviews] count]);
 
   // Verify title button is hooked up properly
   ASSERT_TRUE([[[item_view subviews] objectAtIndex:1]
       isKindOfClass:[NSButton class]]);
   NSButton* title_button = [[item_view subviews] objectAtIndex:1];
   CheckButton(title_button, @selector(openExtensionLink:));
 
   // Verify "Add to Chromium" button is hooked up properly
   ASSERT_TRUE([[[item_view subviews] objectAtIndex:3]
       isKindOfClass:[NSButton class]]);
   NSButton* add_button = [[item_view subviews] objectAtIndex:3];
   CheckButton(add_button, @selector(installExtension:));
 
   // Verify we have a throbber.
   ASSERT_TRUE([[[item_view subviews] objectAtIndex:4]
       isKindOfClass:[NSProgressIndicator class]]);
 }