ChromiumHTM instead of ChromiumHTML to respect progid restriction of 39 characters INCLUDING the NU…

chrome/installer/util/shell_util.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.
 //
 // This file defines functions that integrate Chrome in Windows shell. These
 // functions can be used by Chrome as well as Chrome installer. All of the
 // work is done by the local functions defined in anonymous namespace in
 // this class.
 
 #include "chrome/installer/util/shell_util.h"
@@ skipping 940 matching lines @@
     L"Software\\Microsoft\\Windows\\Shell\\Associations\\UrlAssociations\\"
     L"http\\UserChoice";
 const wchar_t* ShellUtil::kAppPathsRegistryKey =
     L"Software\\Microsoft\\Windows\\CurrentVersion\\App Paths";
 const wchar_t* ShellUtil::kAppPathsRegistryPathName = L"Path";
 
 #if defined(GOOGLE_CHROME_BUILD)
 const wchar_t* ShellUtil::kChromeHTMLProgId = L"ChromeHTML";
 const wchar_t* ShellUtil::kChromeHTMLProgIdDesc = L"Chrome HTML Document";
 #else
-const wchar_t* ShellUtil::kChromeHTMLProgId = L"ChromiumHTML";
+// This used to be "ChromiumHTML", but was forced to become "ChromiumHTM"
+// because of http://crbug.com/153349 as with the '.' and 26 characters suffix
+// added on user-level installs, the generated progid for Chromium was 39
+// characters long which, according to MSDN (
+// http://msdn.microsoft.com/library/aa911706.aspx), is the maximum length
+// for a progid. It was however determined through experimentation that the 39
+// character limit mentioned on MSDN includes the NULL character...
+const wchar_t* ShellUtil::kChromeHTMLProgId = L"ChromiumHTM";
 const wchar_t* ShellUtil::kChromeHTMLProgIdDesc = L"Chromium HTML Document";
 #endif
 
 const wchar_t* ShellUtil::kFileAssociations[] = {L".htm", L".html", L".shtml",
     L".xht", L".xhtml", NULL};
 const wchar_t* ShellUtil::kBrowserProtocolAssociations[] = {L"ftp", L"http",
     L"https", NULL};
 const wchar_t* ShellUtil::kPotentialProtocolAssociations[] = {L"ftp", L"http",
     L"https", L"irc", L"mailto", L"mms", L"news", L"nntp", L"sms", L"smsto",
     L"tel", L"urn", L"webcal", NULL};
@@ skipping 791 matching lines @@
     // are any left...).
     if (free_bits >= 8 && next_byte_index < size) {
       free_bits -= 8;
       bit_stream += bytes[next_byte_index++] << free_bits;
     }
   }
 
   DCHECK_EQ(ret.length(), encoded_length);
   return ret;
 }