Select last word when double clicked after the last character

ui/gfx/render_text_unittest.cc

 // 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.
 
 #include "ui/gfx/render_text.h"
 
 #include "base/memory/scoped_ptr.h"
 #include "base/utf_string_conversions.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/gfx/break_list.h"
@@ skipping 1090 matching lines @@
 }
 
 // Make sure the caret width is always >=1 so that the correct
 // caret is drawn at high DPI. crbug.com/164100.
 TEST_F(RenderTextTest, CaretWidth) {
   scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
   render_text->SetText(ASCIIToUTF16("abcdefg"));
   EXPECT_GE(render_text->GetUpdatedCursorBounds().width(), 1);
 }
 
+// Make sure the last word is selected when the cursor is at text.length().
+TEST_F(RenderTextTest, LastWordSelected) {
+  const std::string kTestURL1 = "http://www.google.com";
+  const std::string kTestURL2 = "http://www.google.com/something/";
+
+  scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
+
+  render_text->SetText(ASCIIToUTF16(kTestURL1));
+  render_text->SetCursorPosition(kTestURL1.length());
+  render_text->SelectWord();
+  EXPECT_EQ(ui::Range(kTestURL1.length() - 3, kTestURL1.length()),
+            render_text->selection());
+
+  render_text->SetText(ASCIIToUTF16(kTestURL2));
+  render_text->SetCursorPosition(kTestURL2.length());
+  render_text->SelectWord();
+  EXPECT_EQ(ui::Range(kTestURL2.length() - 1, kTestURL2.length()),
+            render_text->selection());
+}
+
 // TODO(asvitkine): Cursor movements tests disabled on Mac because RenderTextMac
 //                  does not implement this yet. http://crbug.com/131618
 #if !defined(OS_MACOSX)
 TEST_F(RenderTextTest, DisplayRectShowsCursorLTR) {
   ASSERT_FALSE(base::i18n::IsRTL());
   ASSERT_FALSE(base::i18n::ICUIsRTL());
 
   scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
   render_text->SetText(WideToUTF16(L"abcdefghijklmnopqrstuvwxzyabcdefg"));
   render_text->MoveCursorTo(SelectionModel(render_text->text().length(),
@@ skipping 103 matching lines @@
   EXPECT_EQ(render_text->display_rect().width() - width - 1,
             render_text->GetUpdatedCursorBounds().x());
 
   // Reset the application default text direction to LTR.
   SetRTL(was_rtl);
   EXPECT_EQ(was_rtl, base::i18n::IsRTL());
 }
 #endif  // !defined(OS_MACOSX)
 
 }  // namespace gfx