Compile failure on Clang/Win:

The reason for reverting is: FAILED: ninja -t msvc -e environment.x86 --
"..\..\third_party/llvm-build/Release+Asserts/bin/clang-cl" -m32 /nologo
/showIncludes /FC
@obj\third_party\angle\src\tests\egl_tests\angle_end2end_tests.EGLPresentPathD3D11Test.obj.rsp
/c ..\..\third_party\angle\src\tests\egl_tests\EGLPresentPathD3D11Test.cpp
/Foobj\third_party\angle\src\tests\egl_tests\angle_end2end_tests.EGLPresentPathD3D11Test.obj
/Fdobj\gpu\angle_end2end_tests.cc.pdb 
In file included from
..\..\third_party\angle\src\tests\egl_tests\EGLPresentPathD3D11Test.cpp:7:
In file included from
..\..\third_party\angle\src\tests\test_utils/ANGLETest.h:13:
..\..\testing\gtest\include\gtest/gtest.h(1392,16) :  error: comparison of
integers of different signs: 'const int' and 'const unsigned int'
[-Werror,-Wsign-compare]
  if (expected == actual) {
      ~~~~~~~~ ^  ~~~~~~
..\..\testing\gtest\include\gtest/gtest.h(1422,12) :  note: in instantiation of
function template specialization 'testing::internal::CmpHelperEQ<int, unsigned
int>' requested here
    return CmpHelperEQ(expected_expression, actual_expression, expected,
           ^
..\..\third_party\angle\src\tests\egl_tests\EGLPresentPathD3D11Test.cpp(281,9) :
 note: in instantiation of function template specialization
'testing::internal::EqHelper<false>::Compare<int, unsigned int>' requested here
        ASSERT_EQ(mWindowWidth * 4, mappedSubresource.RowPitch);
        ^
..\..\testing\gtest\include\gtest/gtest.h(1960,32) :  note: expanded from macro
'ASSERT_EQ'
# define ASSERT_EQ(val1, val2) GTEST_ASSERT_EQ(val1, val2)
                               ^
..\..\testing\gtest\include\gtest/gtest.h(1943,67) :  note: expanded from macro
'GTEST_ASSERT_EQ'
                      EqHelper<GTEST_IS_NULL_LITERAL_(expected)>::Compare, \
                                                                  ^

BUG=angleproject:1219

This reverts commit 6b3c1db5.

Change-Id: Ia67ab82dd13295dc03235d57fa417c73f20a49e6
Reviewed-on: https://chromium-review.googlesource.com/326680Reviewed-by: Jamie Madill <jmadill@chromium.org>