Mark three webgl tests pass now on Win.

chrome/test/gpu/webgl_conformance_test_list_autogen.h

Index: chrome/test/gpu/webgl_conformance_test_list_autogen.h
===================================================================
--- chrome/test/gpu/webgl_conformance_test_list_autogen.h	(revision 112998)
+++ chrome/test/gpu/webgl_conformance_test_list_autogen.h	(working copy)
@@ -345,9 +345,9 @@
   "conformance/glsl/functions/glsl-function-acos.html");
 CONFORMANCE_TEST(conformance_glsl_functions_glsl_function_asin,
   "conformance/glsl/functions/glsl-function-asin.html");
-CONFORMANCE_TEST(FAILS_conformance_glsl_functions_glsl_function_atan,
+CONFORMANCE_TEST(conformance_glsl_functions_glsl_function_atan,
   "conformance/glsl/functions/glsl-function-atan.html");
-CONFORMANCE_TEST(FAILS_conformance_glsl_functions_glsl_function_atan_xy,
+CONFORMANCE_TEST(conformance_glsl_functions_glsl_function_atan_xy,
   "conformance/glsl/functions/glsl-function-atan-xy.html");
 CONFORMANCE_TEST(conformance_glsl_functions_glsl_function_ceil,
   "conformance/glsl/functions/glsl-function-ceil.html");
@@ -385,7 +385,7 @@
   "conformance/glsl/functions/glsl-function-mix-gentype.html");
 CONFORMANCE_TEST(conformance_glsl_functions_glsl_function_mod_float,
   "conformance/glsl/functions/glsl-function-mod-float.html");
-CONFORMANCE_TEST(FAILS_conformance_glsl_functions_glsl_function_mod_gentype,
+CONFORMANCE_TEST(conformance_glsl_functions_glsl_function_mod_gentype,
   "conformance/glsl/functions/glsl-function-mod-gentype.html");
 CONFORMANCE_TEST(conformance_glsl_functions_glsl_function_normalize,
   "conformance/glsl/functions/glsl-function-normalize.html");