Cleanup SQLite 3.6.18 import.

Cleanup SQLite 3.6.18 import.

Get things spic-n-span for converting to the amalgamation, then SQLite
3.7.x.

sqlite3Preload -> sqlite3_preload because in the amalgamation, sqlite3_ is the key bit to make sure things aren't marked static.

AFAICT, SQLite 3.6.18 was not imported correctly last time, throwing
up spurious deltas.  Re-import and re-apply patches.

Remove a bunch of Gears-related stuff.  Quite some time ago the
Chromium and Gears SQLite imports were brought into line, but they
were never fully shared.  Nowadays these are completely useless:
 - remove fts1 patches.
 - add a Chromium test to make sure fts1 doesn't sneak in.
 - drop the Symbian stuff.
 - drop database poisoning.

Pull out the WebDatabase patch into a patch file.  Move ICU shell
changes into a distinct patch file.  Pull out testing patches into a
separate test.patch.

BUG=71731
TEST=automated testing and watching closely.

Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=81296

[Scott Hess - ex-Googler, 2011-04-11 22:37:04]

Probably doesn't matter much who reviews, but wanted to be somewhat broad in
case something breaks when it gets launched...

[Scott Hess - ex-Googler, 2011-04-11 22:45:18]

On 2011/04/11 22:37:04, shess wrote:
> Probably doesn't matter much who reviews, but wanted to be somewhat broad in
> case something breaks when it gets launched...

And by "reviews", I don't mean line-by-line!  The important bits are the
src/src/ bits and ext/source-code bits, the test and resource bits aren't too
important.  And the README.chromium and *.patch files, I suppose.

My process for re-importing was to blow away sqlite/src entirely and replace it
with the untar'ed 3.6.18, which is where I suspect the previous importer went
wrong.  Then apply the patches, then run the tests.  Now the trybots...

I can already see that I have to figure out what the story is with src/LICENSE. 
Our README enforcement wants to refer to a license file, but I'm not sure a
stale one is what it wants.

[brettw, 2011-04-12 06:09:45]

LGTM

[M-A Ruel, 2011-04-12 17:28:50]

On 2011/04/12 06:09:45, brettw wrote:
> LGTM

This patch makes the commit queue crash. I'll fix later. Disabling the flag in
the meantime. :)

[Scott Hess - ex-Googler, 2011-04-12 20:13:18]

On 2011/04/12 17:28:50, Marc-Antoine Ruel wrote:
> On 2011/04/12 06:09:45, brettw wrote:
> > LGTM
> 
> This patch makes the commit queue crash. I'll fix later. Disabling the flag in
> the meantime. :)

Aha, then I shall post it using other mechanisms.

[Steve Block, 2012-01-23 19:02:24]

> I can already see that I have to figure out what the story is with
src/LICENSE. 
Hi Scott. Did you ever get to the bottom of this? It looks like README.chromium
still references the missing file.

[Scott Hess - ex-Googler, 2012-02-10 00:23:02]

On 2012/01/23 19:02:24, Steve Block wrote:
> > I can already see that I have to figure out what the story is with
> src/LICENSE. 
> Hi Scott. Did you ever get to the bottom of this? It looks like
README.chromium
> still references the missing file.

Nope, and the file is still missing in later versions of SQLite.  I don't know
enough about how our checker works to know if it could refer to, say,
sqlite/amalgamation/sqlite3.h?

[Steve Block, 2012-02-15 15:44:37]

Thanks for the reply Scott. Looking more closely, it seems that the LICENSE file
was never part of the sqlite code, it was added downstream in
http://codereview.chromium.org/1075015.

It's moved around a few times since, but it looks like its location now matches
README.chromium, so it's all good.