Fix issue with broken links in HyperlinkTextView.

ui/base/cocoa/controls/hyperlink_text_view_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/mac/scoped_nsobject.h"
 #include "testing/gtest_mac.h"
 #import "ui/base/cocoa/controls/hyperlink_text_view.h"
 #import "ui/gfx/test/ui_cocoa_test_helper.h"
 
 namespace {
@@ skipping 40 matching lines @@
   }
 
   HyperlinkTextView* view_;
 
  private:
   base::scoped_nsobject<NSMutableDictionary> linkAttributes_;
 };
 
 TEST_VIEW(HyperlinkTextViewTest, view_);
 
+TEST_F(HyperlinkTextViewTest, TestSelectionRange) {
+  NSRange actualRange;
+
+  // The length of the selection range should be 0.
+  actualRange = [view_ selectionRangeForProposedRange:NSMakeRange(0, 20)
+                                          granularity:NSSelectByCharacter];
+  EXPECT_TRUE(NSEqualRanges(NSMakeRange(0, 0), actualRange));
+
+  // While the location should always match the location of the proposed range.
+  actualRange = [view_ selectionRangeForProposedRange:NSMakeRange(50, 100)
+                                          granularity:NSSelectByCharacter];
+  EXPECT_TRUE(NSEqualRanges(NSMakeRange(50, 0), actualRange));
+}
+
 TEST_F(HyperlinkTextViewTest, TestViewConfiguration) {
   EXPECT_FALSE([view_ isEditable]);
   EXPECT_FALSE([view_ drawsBackground]);
   EXPECT_FALSE([view_ isHorizontallyResizable]);
   EXPECT_FALSE([view_ isVerticallyResizable]);
 }
 
 TEST_F(HyperlinkTextViewTest, TestSetMessage) {
   // Verifies setMessage sets text and attributes properly.
   NSString* message = @"Test message";
@@ skipping 60 matching lines @@
 
 TEST_F(HyperlinkTextViewTest, FirstResponderBehavior) {
   // By default, accept.
   EXPECT_TRUE([view_ acceptsFirstResponder]);
 
   [view_ setRefusesFirstResponder:YES];
   EXPECT_FALSE([view_ acceptsFirstResponder]);
 }
 
 }  // namespace