Stub out sqlite3Preload when using system library.

chrome/common/sqlite_utils.cc

Index: chrome/common/sqlite_utils.cc
diff --git a/chrome/common/sqlite_utils.cc b/chrome/common/sqlite_utils.cc
index 5c5e1309b71aebb2e3e3abdad631893fbc78f003..9695cfb90c760a21ee683d13c9afdcff31022f5d 100644
--- a/chrome/common/sqlite_utils.cc
+++ b/chrome/common/sqlite_utils.cc
@@ -407,3 +407,11 @@ std::wstring SQLStatement::column_wstring(int index) {
   column_wstring(index, &wstr);
   return wstr;
 }
+
+#if defined(USE_SYSTEM_SQLITE)
+// This function is a local change to sqlite3 which doesn't exist when one is
+// using the system sqlite library. Thus, we stub it out here.
+int sqlite3Preload(sqlite3* db) {
+  return 0;
+}
+#endif