Remove Chrome Frame code and resources.

chrome_frame/html_utils.h

-// 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.
-
-// This file defines utility functions for working with html.
-
-#ifndef CHROME_FRAME_HTML_UTILS_H_
-#define CHROME_FRAME_HTML_UTILS_H_
-
-#include <string>
-#include <vector>
-
-#include "base/basictypes.h"
-#include "base/gtest_prod_util.h"
-#include "net/http/http_util.h"
-
-// Forward declarations
-class HtmlUtilUnittest;
-
-//
-// Class designed to take a string of HTML and extract from it named
-// attribute values from named tags.
-//
-// Caveat: this class currently doesn't handle multi-word UTF-16 encoded
-// characters. Doesn't handle implies that any data following such a
-// character could possibly be misinterpreted.
-//
-class HTMLScanner {
- public:
-  typedef std::wstring::const_iterator StrPos;
-
-  // Structure maintaining const_iterators into html_string_.
-  class StringRange {
-    friend class HTMLScanner;
-   public:
-    StringRange();
-    StringRange(StrPos start, StrPos end);
-
-    bool LowerCaseEqualsASCII(const char* other) const;
-    bool Equals(const wchar_t* other) const;
-
-    // Copies the data described by StringRange into destination.
-    std::wstring Copy() const;
-
-    // If this StringRange represents a tag, this method extracts the name of
-    // the tag and sticks it in tag_name.
-    // Returns true if the tag name was successfully extracted.
-    // Returns false if this string doesn't look like a valid tag.
-    bool GetTagName(std::wstring* tag_name) const;
-
-    // From a given string range, uses a string tokenizer to extract the value
-    // of the named attribute if a simple scan finds that the attribute name is
-    // present.
-    //
-    // Returns true if the named attribute can be located and it has a value
-    // which has been placed in attribute_value.
-    //
-    // Note that the attribute value is unquoted here as well, so that
-    // GetTagAttribute(*<foo bar="baz">*, L"bar", *out_value*) will stick
-    // 'bar' in out_value and not '"bar"'.
-    //
-    // Returns false if the named attribute is not present in the tag or if it
-    // did not have a value.
-    //
-    bool GetTagAttribute(const wchar_t* attribute_name,
-                         StringRange* attribute_value) const;
-
-    // Unquotes a StringRange by removing a matching pair of either ' or "
-    // characters from the beginning and end of the string if present.
-    // Returns true if string was modified, false otherwise.
-    bool UnQuote();
-   private:
-     StrPos start_;
-     StrPos end_;
-  };
-
-  typedef std::vector<StringRange> StringRangeList;
-
-  // html_string must be a null-terminated string containing the HTML
-  // to be scanned.
-  explicit HTMLScanner(const wchar_t* html_string);
-
-  // Returns the set of ranges denoting HTML tags that match the given name.
-  // If stop_tag_name is given, then as soon as a tag with this name is
-  // encountered this method will return.
-  void GetTagsByName(const wchar_t* name, StringRangeList* tag_list,
-                     const wchar_t* stop_tag_name);
-
- private:
-  friend class HtmlUtilUnittest;
-  FRIEND_TEST_ALL_PREFIXES(HtmlUtilUnittest, BasicTest);
-
-  // Given html_string which represents the remaining html range, this method
-  // returns the next tag in tag and advances html_string to one character after
-  // the end of tag. This method is intended to be called repeatedly to extract
-  // all of the tags in sequence.
-  //
-  // Returns true if another tag was found and 'tag' was populated with a valid
-  // range.
-  // Returns false if we have reached the end of the html data.
-  bool NextTag(StringRange* html_string, StringRange* tag);
-
-  // Returns true if c can be found in quotes_, false otherwise
-  bool IsQuote(wchar_t c);
-
-  // Returns true if pos refers to the last character in an HTML comment in a
-  // string described by html_string, false otherwise.
-  // For example with html_string describing <!-- foo> -->, pos must refer to
-  // the last > for this method to return true.
-  bool IsHTMLCommentClose(const StringRange* html_string, StrPos pos);
-
-  // Returns true if pos refers to the last character in the terminator of the
-  // opening tag of a downlevel-hidden conditional comment in IE as per
-  // http://msdn.microsoft.com/en-us/library/ms537512(VS.85).aspx#syntax
-  // For example with html_string describing <![if booga >wooga]>, pos must
-  // refer to the last > for this method to return true.
-  bool IsIEConditionalCommentClose(const StringRange* html_string, StrPos pos);
-
-  // We store a (CollapsedWhitespace'd) copy of the html data.
-  const std::wstring html_string_;
-
-  // Store the string of quote characters to avoid repeated construction.
-  const std::wstring quotes_;
-
-  DISALLOW_COPY_AND_ASSIGN(HTMLScanner);
-};
-
-namespace http_utils {
-
-// Adds "chromeframe/a.b.c.d" to the User-Agent string (a.b.c.d is the version).
-// If the cf tag has already been added to the string, the original string is
-// returned.
-std::string AddChromeFrameToUserAgentValue(const std::string& value);
-
-// Removes "chromeframe/a.b.c.d" from the User-Agent string (a.b.c.d is the
-// version).  If the cf tag is not present in the string, the original string is
-// returned.
-std::string RemoveChromeFrameFromUserAgentValue(const std::string& value);
-
-// Fetches the user agent from urlmon and adds chrome frame to the
-// comment section.
-// NOTE: The returned string includes the "User-Agent: " header name.
-std::string GetDefaultUserAgentHeaderWithCFTag();
-
-// Returns the User-Agent header as would be used by Chrome itself.
-const char* GetChromeUserAgent();
-
-// Fetches the default user agent string from urlmon.
-// This value does not include the "User-Agent:" header name.
-std::string GetDefaultUserAgent();
-
-// Returns the Chrome Frame user agent.  E.g. "chromeframe/1.0".
-// Note that in unit tests this will be "chromeframe/0.0" due to the version
-// table not being present in the unit test executable.
-const char* GetChromeFrameUserAgent();
-
-// Returns true if there is a frame busting header (other than the do-nothing
-// "X-Frame-Options: ALLOWALL") in the provided header block.  Note that there
-// may be multiple X-Frame-Options values specified; if there is one anywhere in
-// the list with a value other than ALLOWALL, this returns true.
-bool HasFrameBustingHeader(const std::string& http_headers);
-
-// Returns the header passed in from the headers list.
-std::string GetHttpHeaderFromHeaderList(const std::string& header_name,
-                                        const std::string& headers);
-}  // namespace http_utils
-
-#endif  // CHROME_FRAME_HTML_UTILS_H_