Revert 102006 - fix know issues in RenderText

1. add tests.
2. change SelectWord() to use BreakIterator, so it works for Chinese and Complex script.
3. DELETE/ReplaceChar delete/replace a whole grapheme. ReplaceTextInternal should only replace one grapheme when there is no selection.
4. pointing to position outside of text returns HOME/END position.
5. based on Chrome Linux omnibox and gedit, given 
"abc|   def", double click should select "   " instead of "abc". Change test expectation.

BUG=90426
TEST=compile with touchui=1 test omnibox. run views_unittests.NativeTextfieldViewsTest/TextfieldViewsModelTest
Review URL: http://codereview.chromium.org/7841056

TBR=xji@google.com
Review URL: http://codereview.chromium.org/7982013

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@102020 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 0 insertions, 27 deletions

diff --git a/base/i18n/break_iterator.cc b/base/i18n/break_iterator.cc
index eae531c..afa1fd8 100644
--- a/base/i18n/break_iterator.cc
+++ b/base/i18n/break_iterator.cc
@@ -92,27 +92,6 @@ bool BreakIterator::IsWord() const {
   return (break_type_ == BREAK_WORD && status != UBRK_WORD_NONE);
 }
 
-bool BreakIterator::IsEndOfWord(size_t position) const {
-  if (break_type_ != BREAK_WORD)
-    return false;
-
-  UBreakIterator* iter = static_cast<UBreakIterator*>(iter_);
-  UBool boundary = ubrk_isBoundary(iter, static_cast<int32_t>(position));
-  int32_t status = ubrk_getRuleStatus(iter);
-  return (!!boundary && status != UBRK_WORD_NONE);
-}
-
-bool BreakIterator::IsStartOfWord(size_t position) const {
-  if (break_type_ != BREAK_WORD)
-    return false;
-
-  UBreakIterator* iter = static_cast<UBreakIterator*>(iter_);
-  UBool boundary = ubrk_isBoundary(iter, static_cast<int32_t>(position));
-  ubrk_next(iter);
-  int32_t next_status = ubrk_getRuleStatus(iter);
-  return (!!boundary && next_status != UBRK_WORD_NONE);
-}
-
 string16 BreakIterator::GetString() const {
   DCHECK(prev_ != npos && pos_ != npos);
   return string_.substr(prev_, pos_ - prev_);
diff --git a/base/i18n/break_iterator.h b/base/i18n/break_iterator.h
index 3207256..f375962 100644
--- a/base/i18n/break_iterator.h
+++ b/base/i18n/break_iterator.h
@@ -88,12 +88,6 @@ class BASE_I18N_EXPORT BreakIterator {
   // this distinction doesn't apply and it always retuns false.
   bool IsWord() const;
 
-  // Under BREAK_WORD mode, returns true if |position| is at the end of word or
-  // at the start of word. It always retuns false under BREAK_LINE and
-  // BREAK_NEWLINE modes.
-  bool IsEndOfWord(size_t position) const;
-  bool IsStartOfWord(size_t position) const;
-
   // Returns the string between prev() and pos().
   // Advance() must have been called successfully at least once for pos() to
   // have advanced to somewhere useful.