Added disabling EGL extensions support with --disable-extensions.

ui/gl/gl_tests.gyp

Index: ui/gl/gl_tests.gyp
diff --git a/ui/gl/gl_tests.gyp b/ui/gl/gl_tests.gyp
index bd92444561c0d995d5065ae834d7522cdc9b286b..d664129a52b91807fd990ef1dc73fb7de5196de2 100644
--- a/ui/gl/gl_tests.gyp
+++ b/ui/gl/gl_tests.gyp
@@ -14,6 +14,9 @@
         'test/run_all_unittests.cc',
         'gl_api_unittest.cc',
       ],
+      'include_dirs': [
+        '<(DEPTH)/third_party/khronos',
+      ],
       'dependencies': [
         '<(DEPTH)/base/base.gyp:base',
         '<(DEPTH)/base/base.gyp:test_support_base',
@@ -28,14 +31,9 @@
         }],
         ['OS in ("win", "android", "linux")', {
           'sources': [
+            'egl_api_unittest.cc',
             'test/egl_initialization_displays_unittest.cc',
           ],
-          'dependencies': [
-            '<(DEPTH)/ui/gl/gl.gyp:gl',
-          ],
-          'include_dirs': [
-            '<(DEPTH)/third_party/khronos',
-          ],
         }],
       ],
     }