Fix tiled (stitched) FETurbulence.

Fix tiled (stitched) FETurbulence.

The legacy implementation of FETurbulence actually never generated
tile-able noise. The algorithmic problem was fixed in Skia
(https://codereview.chromium.org/332523006/), but Blink was also not
passing the tile size (filter primitive subregion) to the turbulence
shader. This change fixes the latter (small) problem.

BUG=383495
R=fmalita

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=176121

[Stephen White, 2014-06-12 20:53:59]

fmalita: PTAL. Thanks!

[f(malita), 2014-06-13 14:26:45]

lgtm

[Stephen White, 2014-06-13 14:51:58]

The CQ bit was checked by senorblanco@chromium.org

[commit-bot: I haz the power, 2014-06-13 14:52:45]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/senorblanco@chromium.org/333783002/1

[commit-bot: I haz the power, 2014-06-13 14:53:05]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2014-06-13 14:53:06]

Failed to apply patch for LayoutTests/TestExpectations:
While running patch -p1 --forward --force --no-backup-if-mismatch;
  patching file LayoutTests/TestExpectations
  Hunk #1 FAILED at 1087.
  1 out of 1 hunk FAILED -- saving rejects to file
LayoutTests/TestExpectations.rej

Patch:       LayoutTests/TestExpectations
Index: LayoutTests/TestExpectations
diff --git a/LayoutTests/TestExpectations b/LayoutTests/TestExpectations
index
c58d17b82f7e6f648a859a1aa7825c6f2a260bf1..8cef43d78d21052ac9131dad92cf340cc24ae579
100644
--- a/LayoutTests/TestExpectations
+++ b/LayoutTests/TestExpectations
@@ -1087,6 +1087,7 @@ crbug.com/381102
inspector/sources/debugger/debugger-step-into-custom-element-ca
 
 crbug.com/382884 fast/canvas/alpha.html [ NeedsRebaseline ]
 crbug.com/382884 virtual/gpu/fast/canvas/alpha.html [ NeedsRebaseline ]
+crbug.com/383495 svg/filters/feTurbulence-tiled.svg [ NeedsRebaseline ]
 
 # Started being flaky in r175790.
 crbug.com/361045 inspector/layers/tracing-layer-tree.html [ Pass Failure ]

[Stephen White, 2014-06-13 14:56:00]

The CQ bit was checked by senorblanco@chromium.org

[commit-bot: I haz the power, 2014-06-13 14:56:31]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/senorblanco@chromium.org/333783002/20001

[commit-bot: I haz the power, 2014-06-13 16:07:48]

FYI, CQ is re-trying this CL (attempt #1).
The failing builders are:
  win_blink_rel on tryserver.blink
(http://build.chromium.org/p/tryserver.blink/builders/win_blink_rel/builds/11923)

[commit-bot: I haz the power, 2014-06-13 16:51:24]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2014-06-13 16:51:25]

Try jobs failed on following builders:
  win_blink_rel on tryserver.blink
(http://build.chromium.org/p/tryserver.blink/builders/win_blink_rel/builds/11931)

[Stephen White, 2014-06-13 17:05:56]

The CQ bit was checked by senorblanco@chromium.org

[commit-bot: I haz the power, 2014-06-13 17:07:03]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/senorblanco@chromium.org/333783002/20001

[commit-bot: I haz the power, 2014-06-13 18:23:28]

Change committed as 176121