Chromium side patch for DB support on Linux.

third_party/sqlite/src/os_unix.c

Index: third_party/sqlite/src/os_unix.c
===================================================================
--- third_party/sqlite/src/os_unix.c	(revision 24791)
+++ third_party/sqlite/src/os_unix.c	(working copy)
@@ -2081,6 +2081,13 @@
 }
 
 /*
+** Initializes a unixFile structure with zeros.
+*/
+void initUnixFile(sqlite3_file* file) {
+  memset(file, 0, sizeof(unixFile));
+}
+
+/*
 ** Initialize the contents of the unixFile structure pointed to by pId.
 **
 ** When locking extensions are enabled, the filepath and locking style 
@@ -2088,7 +2095,7 @@
 ** The locking-style specific lockingContext data structure is created 
 ** and assigned here also.
 */
-static int fillInUnixFile(
+int fillInUnixFile(
   sqlite3_vfs *pVfs,      /* Pointer to vfs object */
   int h,                  /* Open file descriptor of file being opened */
   int dirfd,              /* Directory file descriptor */