Fix Win64 DirectX redistributables

Fix Win64 DirectX redistributables

Adds a gyp variable to simplify WINSDK path strings,
and grabs the x64 files rather than x86.

BUG=268525, 267893
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=215814

[jschuh, 2013-08-05 23:33:28]

@piman for an owners rubberstamp
@scottmg and @apatrick to make sure I've got the right files

[piman, 2013-08-05 23:35:13]

lgtm

[scottmg, 2013-08-05 23:39:03]

lgtm

https://codereview.chromium.org/22262003/diff/1/content/content_gpu.gypi
File content/content_gpu.gypi (right):

https://codereview.chromium.org/22262003/diff/1/content/content_gpu.gypi#newc...
content/content_gpu.gypi:53: 'input': 'Jun2010_D3DCompiler_43_x86.cab',
we don't need to extract the x64 one? it's part of the os on 7/8 i assume? add a
comment to that effect if that's why.

[apatrick_chromium, 2013-08-06 00:06:47]

lgtm

https://codereview.chromium.org/22262003/diff/1/content/content_gpu.gypi
File content/content_gpu.gypi (right):

https://codereview.chromium.org/22262003/diff/1/content/content_gpu.gypi#newc...
content/content_gpu.gypi:53: 'input': 'Jun2010_D3DCompiler_43_x86.cab',
On 2013/08/05 23:39:03, scottmg wrote:
> we don't need to extract the x64 one? it's part of the os on 7/8 i assume? add
a
> comment to that effect if that's why.

43 is the more recent version that works on XP. We never use it on Vista and
later. So it doesn't need to be extracted if 64-bit is not supported on XP.
Agree on adding a comment.

[jschuh, 2013-08-06 00:26:55]

https://codereview.chromium.org/22262003/diff/1/content/content_gpu.gypi
File content/content_gpu.gypi (right):

https://codereview.chromium.org/22262003/diff/1/content/content_gpu.gypi#newc...
content/content_gpu.gypi:53: 'input': 'Jun2010_D3DCompiler_43_x86.cab',
On 2013/08/06 00:06:47, apatrick_chromium wrote:
> On 2013/08/05 23:39:03, scottmg wrote:
> > we don't need to extract the x64 one? it's part of the os on 7/8 i assume?
add
> a
> > comment to that effect if that's why.
> 
> 43 is the more recent version that works on XP. We never use it on Vista and
> later. So it doesn't need to be extracted if 64-bit is not supported on XP.
> Agree on adding a comment.

Done.

[apatrick_chromium, 2013-08-06 00:27:25]

lgtm

[commit-bot: I haz the power, 2013-08-06 00:42:09]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/jschuh@chromium.org/22262003/6001

[commit-bot: I haz the power, 2013-08-06 06:09:48]

Change committed as 215814