Add //third_party/sqlite to dirs_to_snapshot, remove net_sql.patch

third_party/sqlite/sqlite-src-3080704/tool/symbols.sh

Index: third_party/sqlite/sqlite-src-3080704/tool/symbols.sh
diff --git a/third_party/sqlite/sqlite-src-3080704/tool/symbols.sh b/third_party/sqlite/sqlite-src-3080704/tool/symbols.sh
new file mode 100644
index 0000000000000000000000000000000000000000..befffce5c4c43403f7c6cd99aa25cf72fe26fe0d
--- /dev/null
+++ b/third_party/sqlite/sqlite-src-3080704/tool/symbols.sh
@@ -0,0 +1,34 @@
+#!/bin/sh
+#
+# Run this script in a directory that contains a valid SQLite makefile in
+# order to verify that unintentionally exported symbols.
+#
+make sqlite3.c
+
+echo '****** Exported symbols from a build including RTREE, FTS4 & ICU ******'
+gcc -c -DSQLITE_ENABLE_FTS3 -DSQLITE_ENABLE_RTREE \
+  -DSQLITE_ENABLE_MEMORY_MANAGEMENT -DSQLITE_ENABLE_STAT3 \
+  -DSQLITE_ENABLE_MEMSYS5 -DSQLITE_ENABLE_UNLOCK_NOTIFY \
+  -DSQLITE_ENABLE_COLUMN_METADATA -DSQLITE_ENABLE_ATOMIC_WRITE \
+  -DSQLITE_ENABLE_ICU \
+  sqlite3.c
+nm sqlite3.o | grep ' [TD] ' | sort -k 3
+
+echo '****** Surplus symbols from a build including RTREE, FTS4 & ICU ******'
+nm sqlite3.o | grep ' [TD] ' | grep -v ' .*sqlite3_'
+
+echo '****** Dependencies of the core. No extensions. No OS interface *******'
+gcc -c -DSQLITE_ENABLE_MEMORY_MANAGEMENT -DSQLITE_ENABLE_STAT3 \
+  -DSQLITE_ENABLE_MEMSYS5 -DSQLITE_ENABLE_UNLOCK_NOTIFY \
+  -DSQLITE_ENABLE_COLUMN_METADATA -DSQLITE_ENABLE_ATOMIC_WRITE \
+  -DSQLITE_OS_OTHER -DSQLITE_THREADSAFE=0 \
+  sqlite3.c
+nm sqlite3.o | grep ' U ' | sort -k 3
+
+echo '****** Dependencies including RTREE & FTS4 *******'
+gcc -c -DSQLITE_ENABLE_FTS3 -DSQLITE_ENABLE_RTREE \
+  -DSQLITE_ENABLE_MEMORY_MANAGEMENT -DSQLITE_ENABLE_STAT3 \
+  -DSQLITE_ENABLE_MEMSYS5 -DSQLITE_ENABLE_UNLOCK_NOTIFY \
+  -DSQLITE_ENABLE_COLUMN_METADATA -DSQLITE_ENABLE_ATOMIC_WRITE \
+  sqlite3.c
+nm sqlite3.o | grep ' U ' | sort -k 3