Roll src/third_party/angle/ bbd663a2d..a314b61c1 (7 commits).
Roll src/third_party/angle/ bbd663a2d..a314b61c1 (7 commits).

BUG=609250
TBR=jmadill@chromium.org

CQ_INCLUDE_TRYBOTS=tryserver.chromium.win:win_optional_gpu_tests_rel;tryserver.chromium.mac:mac_optional_gpu_tests_rel;tryserver.chromium.linux:linux_optional_gpu_tests_rel

https://chromium.googlesource.com/angle/angle.git/+log/bbd663a2d36e..a314b61c16be

$ git log bbd663a2d..a314b61c1 --date=short --no-merges --format='%ad %ae %s'
2016-03-10 oetuaho@nvidia.com Determine D3D texture storage size with correct base level
2016-05-05 stevenjb@chromium.org Disable angle_enable_gl on chromeos
2016-05-04 jbauman@chromium.org Fix eglStreamConsumerAcquireKHR
2016-04-26 jmadill@chromium.org Pass ContextImpl to Framebuffer methods instead of ContextState.
2016-05-03 jmadill@chromium.org Add a ContextImpl class.
2016-04-29 oetuaho@nvidia.com Add missing errors specified by OES_EGL_image_external
2016-04-28 jmadill@chromium.org Add script for updating Canary ANGLE DLLs.

Review-Url: https://codereview.chromium.org/1956793002
Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#392090}

axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk