Update Sad Tab help text and link.

chrome/browser/ui/cocoa/tab_contents/sad_tab_controller_unittest.mm

 // Copyright (c) 2011 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.
 
 #include "base/debug/debugger.h"
 #include "base/memory/scoped_nsobject.h"
 #import "chrome/browser/ui/cocoa/cocoa_test_helper.h"
+#import "chrome/browser/ui/cocoa/hyperlink_text_view.h"
 #import "chrome/browser/ui/cocoa/tab_contents/sad_tab_controller.h"
 #import "chrome/browser/ui/cocoa/tab_contents/sad_tab_view.h"
 #include "chrome/test/base/testing_profile.h"
 #include "content/browser/renderer_host/test_render_view_host.h"
 #include "content/browser/tab_contents/test_tab_contents.h"
 
 @interface SadTabView (ExposedForTesting)
 // Implementation is below.
-- (NSButton*)linkButton;
+- (HyperlinkTextView*)helpTextView;
 @end
 
 @implementation SadTabView (ExposedForTesting)
-- (NSButton*)linkButton {
-  return linkButton_;
+- (HyperlinkTextView*)helpTextView {
+  return help_.get();
 }
 @end
 
 namespace {
 
 class SadTabControllerTest : public RenderViewHostTestHarness {
  public:
   SadTabControllerTest() : test_window_(nil) {
     link_clicked_ = false;
   }
@@ skipping 23 matching lines @@
     SadTabController* controller =
         [[SadTabController alloc] initWithTabContents:contents()
                                             superview:contentView];
     EXPECT_TRUE(controller);
     NSView* view = [controller view];
     EXPECT_TRUE(view);
 
     return controller;
   }
 
-  NSButton* GetLinkButton(SadTabController* controller) {
+  HyperlinkTextView* GetHelpTextView(SadTabController* controller) {
     SadTabView* view = static_cast<SadTabView*>([controller view]);
-    return ([view linkButton]);
+    return ([view helpTextView]);
   }
 
   static bool link_clicked_;
   CocoaTestHelperWindow* test_window_;
 };
 
 // static
 bool SadTabControllerTest::link_clicked_;
 
 TEST_F(SadTabControllerTest, WithTabContents) {
   scoped_nsobject<SadTabController> controller(CreateController());
   EXPECT_TRUE(controller);
-  NSButton* link = GetLinkButton(controller);
-  EXPECT_TRUE(link);
+  HyperlinkTextView* help = GetHelpTextView(controller);
+  EXPECT_TRUE(help);
 }
 
 TEST_F(SadTabControllerTest, WithoutTabContents) {
   DeleteContents();
   scoped_nsobject<SadTabController> controller(CreateController());
   EXPECT_TRUE(controller);
-  NSButton* link = GetLinkButton(controller);
-  EXPECT_FALSE(link);
+  HyperlinkTextView* help = GetHelpTextView(controller);
+  EXPECT_FALSE(help);
 }
 
 TEST_F(SadTabControllerTest, ClickOnLink) {
   scoped_nsobject<SadTabController> controller(CreateController());
-  NSButton* link = GetLinkButton(controller);
-  EXPECT_TRUE(link);
+  HyperlinkTextView* help = GetHelpTextView(controller);
+  EXPECT_TRUE(help);
   EXPECT_FALSE(link_clicked_);
-  [link performClick:link];
+  [help clickedOnLink:nil atIndex:0];
   EXPECT_TRUE(link_clicked_);
 }
 
 }  // namespace
 
 @implementation NSApplication (SadTabControllerUnitTest)
 // Add handler for the openLearnMoreAboutCrashLink: action to NSApp for testing
 // purposes. Normally this would be sent up the responder tree correctly, but
 // since tests run in the background, key window and main window are never set
 // on NSApplication. Adding it to NSApplication directly removes the need for
 // worrying about what the current window with focus is.
 - (void)openLearnMoreAboutCrashLink:(id)sender {
   SadTabControllerTest::link_clicked_ = true;
 }
 
 @end