Reland of Upgrade PixelStorei to ES3/WebGL2. (patchset #1 id:1 of https://codereview.chromium.org/1494553002/ )

Reason for revert:
revert the revert (i.e., reland)

the WebGL 2 CTS failure is due to the bug in the test.  I am going to suppress it for now and fix it in khronos and roll in.

Original issue's description:
> Revert of Upgrade PixelStorei to ES3/WebGL2. (patchset #7 id:160001 of https://codereview.chromium.org/1474513003/ )
>
> Reason for revert:
> Failing the WebGL 2 CTS:
>
> WebglConformance.conformance2_state_gl_get_calls:
> [3560:1299:1202/051124:INFO:CONSOLE(11)] "context.getParameter(context.UNPACK_SKIP_IMAGES) should be false (of type boolean). Was 0 (of type number).", source:  (11)
> [3560:1299:1202/051124:INFO:CONSOLE(11)] "FAIL context.getParameter(context.UNPACK_SKIP_IMAGES) should be false (of type boolean). Was 0 (of type number).", source:  (11)
> [3560:1299:1202/051124:INFO:CONSOLE(11)] "context.getParameter(context.UNPACK_SKIP_PIXELS) should be false (of type boolean). Was 0 (of type number).", source:  (11)
> [3560:1299:1202/051124:INFO:CONSOLE(11)] "FAIL context.getParameter(context.UNPACK_SKIP_PIXELS) should be false (of type boolean). Was 0 (of type number).", source:  (11)
> [3560:1299:1202/051124:INFO:CONSOLE(11)] "context.getParameter(context.UNPACK_SKIP_ROWS) should be false (of type boolean). Was 0 (of type number).", source:  (11)
> [3560:1299:1202/051124:INFO:CONSOLE(11)] "FAIL context.getParameter(context.UNPACK_SKIP_ROWS) should be false (of type boolean). Was 0 (of type number).", source:  (11)
>
> http://build.chromium.org/p/chromium.gpu.fyi/builders/Mac%2010.10%20Release%20%28Intel%29/builds/7016
> http://build.chromium.org/p/chromium.gpu.fyi/builders/Win8%20Debug%20%28NVIDIA%29/builds/10350
> http://build.chromium.org/p/chromium.gpu.fyi/builders/Linux%20Release%20%28NVIDIA%29/builds/33475
>
> Original issue's description:
> > Upgrade PixelStorei to ES3/WebGL2.
> >
> > BUG=295792,429053
> > TEST=gpu_unittests, webgl2_conformance
> > R=kbr@chromium.org,bajones@chromium.org,piman@chromium.org
> >
> > Committed: https://crrev.com/c6c114178c562feeddfc4d41a33b9999698a4144
> > Cr-Commit-Position: refs/heads/master@{#362585}
>
> TBR=bajones@chromium.org,kbr@chromium.org,piman@chromium.org,zmo@chromium.org
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=295792,429053
>
> Committed: https://crrev.com/72ea7571631a1922f7c15e7ef5447b8098c1ab24
> Cr-Commit-Position: refs/heads/master@{#362696}

TBR=bajones@chromium.org,kbr@chromium.org,piman@chromium.org,jmadill@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=295792,429053

Review URL: https://codereview.chromium.org/1492013002

Cr-Commit-Position: refs/heads/master@{#362741}

1 files changed, 8 insertions, 0 deletions

diff --git a/gpu/command_buffer/service/context_state_autogen.h b/gpu/command_buffer/service/context_state_autogen.h
index 7278a24..d354bd0 100644
--- a/gpu/command_buffer/service/context_state_autogen.h
+++ b/gpu/command_buffer/service/context_state_autogen.h
@@ -83,6 +83,14 @@ GLint stencil_path_ref;
 GLuint stencil_path_mask;
 GLint pack_alignment;
 GLint unpack_alignment;
+GLint pack_row_length;
+GLint pack_skip_pixels;
+GLint pack_skip_rows;
+GLint unpack_row_length;
+GLint unpack_image_height;
+GLint unpack_skip_pixels;
+GLint unpack_skip_rows;
+GLint unpack_skip_images;
 GLfloat polygon_offset_factor;
 GLfloat polygon_offset_units;
 GLclampf sample_coverage_value;