Disable broken test on Fuchsia

This disables the ImageTest.SourceCubeTargetRenderbuffer test
that does not work on Fuchsia.

BUG=angleproject:2475, angleproject:3145
TEST=angle_end2end_tests on Fuchsia

Change-Id: I8e681926ee322642b39c32b3bc0cd266ffa1d11f
Reviewed-on: https://chromium-review.googlesource.com/c/1479283
Reviewed-by: Jamie Madill <jmadill@google.com>
Commit-Queue: Jamie Madill <jmadill@google.com>
diff --git a/src/tests/gl_tests/ImageTest.cpp b/src/tests/gl_tests/ImageTest.cpp
index f9b2ba0..c8b9c69 100644
--- a/src/tests/gl_tests/ImageTest.cpp
+++ b/src/tests/gl_tests/ImageTest.cpp
@@ -1220,6 +1220,9 @@
     EGLWindow *window = getEGLWindow();
     ANGLE_SKIP_TEST_IF(!hasOESExt() || !hasBaseExt() || !hasCubemapExt());
 
+    // http://anglebug.com/3145
+    ANGLE_SKIP_TEST_IF(IsVulkan() && IsIntel() && IsFuchsia());
+
     GLubyte data[24] = {
         255, 0, 255, 255, 255, 255, 255, 255, 255, 0, 0, 255,
         0,   0, 255, 255, 0,   255, 0,   255, 0,   0, 0, 255,