Mark WebglConformance_conformance_uniforms_gl_uniform_arrays as flaky.

content/test/gpu/gpu_tests/webgl_conformance_expectations.py

Index: content/test/gpu/gpu_tests/webgl_conformance_expectations.py
diff --git a/content/test/gpu/gpu_tests/webgl_conformance_expectations.py b/content/test/gpu/gpu_tests/webgl_conformance_expectations.py
index 841bdb5948a6778f2c0b348106dfb20907297b52..3c1b00e2ea2f8009f44fa1b708d8bc18b955cbea 100644
--- a/content/test/gpu/gpu_tests/webgl_conformance_expectations.py
+++ b/content/test/gpu/gpu_tests/webgl_conformance_expectations.py
@@ -142,6 +142,10 @@ class WebGLConformanceExpectations(GpuTestExpectations):
               'copy-tex-image-and-sub-image-2d.html',
               ['win7', 'intel', 'no_passthrough'])
 
+    # Win / Intel failures
+    self.Flaky('conformance/uniforms/gl-uniform-arrays.html',
+        ['win', 'debug', 'intel'], bug=678382)
+
     # Win / AMD flakiness seen on new tryservers.
     # It's unfortunate that this suppression needs to be so broad, but
     # basically any test that uses readPixels is potentially flaky, and