We replace "a || b" with "a ? true : b",
"a && b" with "a ? b : false".

This is to work around short circuiting bug in Mac drivers.

ANGLEBUG=482
TEST=webgl conformance tests
R=alokp@chromium.org, kbr@chromium.org

Review URL: https://codereview.appspot.com/14529048

Conflicts:

	src/build_angle.gypi
	src/compiler/translator/Compiler.cpp

Change-Id: Ic2384a97d58f54294efcb3a012deb2007a9fc658
Reviewed-on: https://chromium-review.googlesource.com/178996Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Tested-by: Shannon Woods <shannonwoods@chromium.org>