SQLite: Minor comment updates and fix method name typo.

This CL improves existing documentation comments in MetaTable and fixes
a typo in the name of a Connection method.

Bug: 
Change-Id: I3ba9aec3ac1d3115f0f3e3508750a49a2b2e093b
Reviewed-on: https://chromium-review.googlesource.com/647488
Commit-Queue: Victor Costan <[email protected]>
Reviewed-by: Victor Costan <[email protected]>
Cr-Commit-Position: refs/heads/master@{#499377}
diff --git a/sql/connection.h b/sql/connection.h
index 8b96407..769d56f 100644
--- a/sql/connection.h
+++ b/sql/connection.h
@@ -310,7 +310,7 @@
   // was razed.
   //
   // false is returned if the database is locked by some other
-  // process.  RazeWithTimeout() may be used if appropriate.
+  // process.
   //
   // NOTE(shess): Raze() will DCHECK in the following situations:
   // - database is not open.
@@ -334,7 +334,6 @@
   // TODO(shess): Bake auto_vacuum into Connection's API so it can
   // just pick up the default.
   bool Raze();
-  bool RazeWithTimout(base::TimeDelta timeout);
 
   // Breaks all outstanding transactions (as initiated by
   // BeginTransaction()), closes the SQLite database, and poisons the