Adds an integration test for uninstalling app list search results.

ui/app_list/cocoa/apps_search_box_controller_unittest.mm

 // Copyright 2013 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 "ui/app_list/cocoa/apps_search_box_controller.h"
 
 #include "base/mac/scoped_nsobject.h"
 #include "base/strings/sys_string_conversions.h"
 #include "base/strings/utf_string_conversions.h"
 #import "testing/gtest_mac.h"
@@ skipping 99 matching lines @@
   // Usually localized "Search".
   const base::string16 hit_text(ASCIIToUTF16("hint"));
   model->SetHintText(hit_text);
   EXPECT_NSEQ(base::SysUTF16ToNSString(hit_text),
       [[[apps_search_box_controller_ searchTextField] cell] placeholderString]);
 
   const base::string16 search_text(ASCIIToUTF16("test"));
   model->SetText(search_text);
   EXPECT_NSEQ(base::SysUTF16ToNSString(search_text),
               [[apps_search_box_controller_ searchTextField] stringValue]);
-  // Updates coming via the model should not notify the delegate.
-  EXPECT_EQ(0, [delegate_ textChangeCount]);
+  // Updates coming via the model should notify the delegate.
+  EXPECT_EQ(1, [delegate_ textChangeCount]);
 
   // Updates from the view should update the model and notify the delegate.
   [apps_search_box_controller_ clearSearch];
   EXPECT_EQ(base::string16(), model->text());
   EXPECT_NSEQ([NSString string],
               [[apps_search_box_controller_ searchTextField] stringValue]);
-  EXPECT_EQ(1, [delegate_ textChangeCount]);
+  EXPECT_EQ(2, [delegate_ textChangeCount]);
 
-  // Test pressing escape clears the search.
+  // Test pressing escape clears the search. First add some text.
   model->SetText(search_text);
+  EXPECT_EQ(3, [delegate_ textChangeCount]);
+
   EXPECT_NSEQ(base::SysUTF16ToNSString(search_text),
               [[apps_search_box_controller_ searchTextField] stringValue]);
   SimulateKeyAction(@selector(complete:));
   EXPECT_NSEQ([NSString string],
               [[apps_search_box_controller_ searchTextField] stringValue]);
-  EXPECT_EQ(2, [delegate_ textChangeCount]);
+  EXPECT_EQ(4, [delegate_ textChangeCount]);
 }
 
 // Test the popup menu items.
 TEST_F(AppsSearchBoxControllerTest, SearchBoxMenu) {
   NSPopUpButton* menu_control = [apps_search_box_controller_ menuControl];
   EXPECT_TRUE([apps_search_box_controller_ appListMenu]);
   ui::MenuModel* menu_model
       = [apps_search_box_controller_ appListMenu]->menu_model();
   // Add one to the item count to account for the blank, first item that Cocoa
   // has in its popup menus.
@@ skipping 39 matching lines @@
   base::scoped_nsobject<NSView> current_user_menu_item_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(AppsSearchBoxCustomMenuItemTest);
 };
 
 TEST_VIEW(AppsSearchBoxCustomMenuItemTest, current_user_menu_item_);
 
 }  // namespace test
 }  // namespace app_list