Replace HistoryQuickProvider protobuf-based caching with an SQLite-based database.

chrome/common/chrome_constants.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 "chrome/common/chrome_constants.h"
 
 #include "base/file_path.h"
 
 #define FPL FILE_PATH_LITERAL
 
@@ skipping 121 matching lines @@
 const FilePath::CharType kCookieFilename[] = FPL("Cookies");
 const FilePath::CharType kCRLSetFilename[] =
     FPL("Certificate Revocation Lists");
 const FilePath::CharType kCustomDictionaryFileName[] =
     FPL("Custom Dictionary.txt");
 const FilePath::CharType kExtensionsCookieFilename[] = FPL("Extension Cookies");
 const FilePath::CharType kFaviconsFilename[] = FPL("Favicons");
 const FilePath::CharType kHistoryBookmarksFileName[] =
     FPL("Bookmarks From History");
 const FilePath::CharType kHistoryFilename[] = FPL("History");
+const FilePath::CharType kHQPCacheFilename[] = FPL("History Provider Cache");
+const FilePath::CharType kHQPCacheDBFilename[] =
+    FPL("History Provider Cache DB");
 const FilePath::CharType kIsolatedAppStateDirname[] = FPL("Isolated Apps");
 const FilePath::CharType kJumpListIconDirname[] = FPL("JumpListIcons");
 const FilePath::CharType kLocalStateFilename[] = FPL("Local State");
 const FilePath::CharType kLoginDataFileName[] = FPL("Login Data");
 const FilePath::CharType kManagedModePolicyFilename[] =
     FPL("Managed Mode Settings");
 const FilePath::CharType kMediaCacheDirname[] = FPL("Media Cache");
 const FilePath::CharType kNewTabThumbnailsFilename[] = FPL("Top Thumbnails");
 const FilePath::CharType kOBCertFilename[] = FPL("Origin Bound Certs");
 const FilePath::CharType kOffTheRecordMediaCacheDirname[] =
@@ skipping 61 matching lines @@
 const wchar_t kMetroChromeUserDataSubDir[] = L"Metro";
 const wchar_t kMetroNavigationAndSearchMessage[] =
     L"CHROME_METRO_NAV_SEARCH_REQUEST";
 const wchar_t kMetroGetCurrentTabInfoMessage[] =
     L"CHROME_METRO_GET_CURRENT_TAB_INFO";
 #endif
 
 }  // namespace chrome
 
 #undef FPL