This takes a trick from skia to go faster. For now, it's only
used on non-NEON devices.

--HG--
extra : rebase_source : c2ddce91cc8cf71ee609420107b0922d1166db43

--HG--
extra : rebase_source : 0d2930f14507123535a72aa75f73f78d03bcb765

This gives significantly faster bilinear sampling when we
don't have NEON.

Bug 749459 - Load the EGL libraries correctly on Windows from the GRE path and the system location on other platforms (should be Android-only currently), r=bjacob

--HG--
extra : rebase_source : 12750d4c6dbcc5324256039b9f05b207ed7ec990

Bug 753854 - -[NSOpenGLPixelFormat initWithAttributes] should be passed a 0 terminated array. [r=joe]

This will allows us to scale and repeat in a single pass instead
of doing it in two.

--HG--
extra : rebase_source : 8f40aec620494d9c584a3c58cd70ac39723041a4

Bug 751643 - ensure that strings produced by ANGLE's getVariableInfo function are null-terminated - r=bz,upstream

Checked in upstream ANGLE as r1070.

When the layer size changed, reused tiles that then fell out of the layer area
would be incorrectly rendered. Fix this by deriving the rendered content area
from set display-ports and correctly invalidating when harvesting tiles, and
clipping when drawing them.

--HG--
extra : rebase_source : 6427be89b9cfb1e54feb0582fb64fa97d7d42bde

Landing on a CLOSED TREE

--HG--
extra : rebase_source : 914f0602e64557481f91f96bd78fb9c6ed2dc4b5