Remove prefix eliding

chrome/browser/ui/title_prefix_matcher.h

-// 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.
-
-#ifndef CHROME_BROWSER_UI_TITLE_PREFIX_MATCHER_H_
-#define CHROME_BROWSER_UI_TITLE_PREFIX_MATCHER_H_
-#pragma once
-
-#include <vector>
-
-#include "base/string16.h"
-#include "googleurl/src/gurl.h"
-
-// This class exposes a static method that receives a vector of TitleInfo
-// objects so that it can find the length of the common prefixes among all
-// the titles. It can be used for tab titles for example so that the common
-// prefixes can be elided.
-// First, the caller needs to fill a vector of TitleInfo objects with the titles
-// for which they want to find the common prefix lengths. They can also provide
-// an optional caller_value where the index of the tabs could be saved
-// for example. This way the caller can remember which tab this title belongs
-// to, if not all tabs are passed into the vector.
-// When CalculatePrefixLengths returns, the TitleInfo objects in the vector
-// are set with the prefix_length that is common between this title
-// and at least one other.
-// Note that the prefix_length is only calculated at word boundaries.
-class TitlePrefixMatcher {
- public:
-  struct TitleInfo {
-    TitleInfo(const string16* title, const GURL& url, int caller_value);
-    ~TitleInfo();
-    // We assume the title string will be valid throughout the execution of
-    // the prefix lengths calculation, and so we use a pointer to avoid an
-    // unnecessary string copy.
-    const string16* title;
-    // We only look for common prefix when the URL has the same hostname.
-    GURL url;
-    // This contains the number of characters at the beginning of title that
-    // are common with other titles in the TitleInfo vector.
-    size_t prefix_length;
-    // Utility data space for the caller. Unused by CalculatePrefixLengths.
-    int caller_value;
-  };
-  static void CalculatePrefixLengths(std::vector<TitleInfo>* title_infos);
-
-  // We want to show the last few common chars of a page title in the tab,
-  // so we only do it if the common prefix is at least kMinElidingLength,
-  // otherwise, we could be replacing less characters than the ellipsis take.
-  static const int kCommonCharsToShow;
-  static const size_t kMinElidingLength;
-
- private:
-  DISALLOW_IMPLICIT_CONSTRUCTORS(TitlePrefixMatcher);
-};
-
-#endif  // CHROME_BROWSER_UI_TITLE_PREFIX_MATCHER_H_