Revert "Always build the ANGLE test code. Always build ANGLE on windows and linux."

This reverts commit 238b820369c4b556c2e7c8277855e6950de3d9eb.

Reason for revert: breaks 32-bit bots, iOS bots, Google3 roll, -ASAN bot.

Original change's description:
> Always build the ANGLE test code. Always build ANGLE on windows and linux.
> 
> Make ANGLE test code independent of having ANGLE lib. Make ANGLE test code not include EGL headers.
> 
> GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=4040
> 
> DOCS_PREVIEW= https://skia.org/?cl=4040
> 
> Change-Id: I7b857e9785246743f53fb969647b1162ce7419ab
> Reviewed-on: https://skia-review.googlesource.com/4040
> Commit-Queue: Brian Salomon <bsalomon@google.com>
> Reviewed-by: Mike Klein <mtklein@chromium.org>
> 

TBR=mtklein@chromium.org,mtklein@google.com,bsalomon@google.com,reviews@skia.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Change-Id: I19bab8c93baebf032f8a4cefbedfe7359317e806
Reviewed-on: https://skia-review.googlesource.com/4758
Commit-Queue: Mike Klein <mtklein@chromium.org>
Reviewed-by: Mike Klein <mtklein@chromium.org>
diff --git a/tests/ImageTest.cpp b/tests/ImageTest.cpp
index 2752c98..0acb428 100644
--- a/tests/ImageTest.cpp
+++ b/tests/ImageTest.cpp
@@ -452,16 +452,7 @@
     }
 }
 
-static bool is_rendering_and_not_angle_gl(sk_gpu_test::GrContextFactory::ContextType type) {
-    if (type == sk_gpu_test::GrContextFactory::kANGLE_GL_ES3_ContextType ||
-        type == sk_gpu_test::GrContextFactory::kANGLE_GL_ES2_ContextType) {
-        return false;
-    }
-    return sk_gpu_test::GrContextFactory::IsRenderingContext(type);
-}
-
-DEF_GPUTEST_FOR_CONTEXTS(SkImage_newTextureImage, is_rendering_and_not_angle_gl, reporter,
-                         contextInfo) {
+DEF_GPUTEST_FOR_RENDERING_CONTEXTS(SkImage_newTextureImage, reporter, contextInfo) {
     GrContext* context = contextInfo.grContext();
     sk_gpu_test::TestContext* testContext = contextInfo.testContext();
 
@@ -893,7 +884,7 @@
     }
 }
 
-DEF_GPUTEST_FOR_CONTEXTS(DeferredTextureImage, is_rendering_and_not_angle_gl, reporter, ctxInfo) {
+DEF_GPUTEST_FOR_RENDERING_CONTEXTS(DeferredTextureImage, reporter, ctxInfo) {
     GrContext* context = ctxInfo.grContext();
     sk_gpu_test::TestContext* testContext = ctxInfo.testContext();
     sk_sp<GrContextThreadSafeProxy> proxy = context->threadSafeProxy();