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

chrome/common/chrome_constants.cc

Index: chrome/common/chrome_constants.cc
===================================================================
--- chrome/common/chrome_constants.cc	(revision 151481)
+++ chrome/common/chrome_constants.cc	(working copy)
@@ -139,6 +139,9 @@
 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");