NaCl SDK: Demonstrate use of pp::View::GetDeviceScale for 3D

NaCl SDK: Demonstrate use of pp::View::GetDeviceScale for 3D

Demonstrate in the NaCl SDK API demo for pp::Graphics3D how to
use full device resolution on HiDPI displays. For Graphics3D it
is simply a matter of sizing the texture in device pixels, by
multiplying the width/height by view.GetDeviceScale().

BUG=196253
TEST=Build NaCl SDK, run with --force-device-scale-factor=2

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=283952

[Josh Horwich, 2014-07-16 23:43:30]

PTAL

[binji, 2014-07-17 00:05:36]

lgtm

https://codereview.chromium.org/398943003/diff/1/native_client_sdk/src/exampl...
File native_client_sdk/src/examples/api/graphics_3d/graphics_3d.cc (right):

https://codereview.chromium.org/398943003/diff/1/native_client_sdk/src/exampl...
native_client_sdk/src/examples/api/graphics_3d/graphics_3d.cc:250: int32_t
new_width = view.GetRect().width() * view.GetDeviceScale();
maybe a quick comment here?

[Josh Horwich, 2014-07-17 00:46:13]

https://codereview.chromium.org/398943003/diff/1/native_client_sdk/src/exampl...
File native_client_sdk/src/examples/api/graphics_3d/graphics_3d.cc (right):

https://codereview.chromium.org/398943003/diff/1/native_client_sdk/src/exampl...
native_client_sdk/src/examples/api/graphics_3d/graphics_3d.cc:250: int32_t
new_width = view.GetRect().width() * view.GetDeviceScale();
On 2014/07/17 00:05:36, binji wrote:
> maybe a quick comment here?

Done. WDYT?

[binji, 2014-07-17 16:19:00]

great, thanks!

[Josh Horwich, 2014-07-17 20:25:02]

The CQ bit was checked by jhorwich@chromium.org

[commit-bot: I haz the power, 2014-07-17 20:28:17]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/jhorwich@chromium.org/398943003/20001

[commit-bot: I haz the power, 2014-07-18 00:53:12]

Change committed as 283952