Remove two failure expectations on Linux Intel.

  conformance/programs/program-test.html
  conformance/uniforms/uniform-default-values.html

These tests are passing on the upgraded Mesa driver.

Bug: 928530
Bug: 927466
Change-Id: Ib2ab2bf1ac30b777931dbc9344f2e3b20c608f9c
Tbr: piman@chromium.org
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1574649Reviewed-by: Kenneth Russell <kbr@chromium.org>
Commit-Queue: Kenneth Russell <kbr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#652726}

content/test/gpu/gpu_tests/webgl_conformance_expectations.py

@@ -627,13 +627,6 @@ class WebGLConformanceExpectations(GpuTestExpectations):
         'draw-webgl-to-canvas-2d-repeatedly.html',
         ['linux', 'amd', 'passthrough'], bug=906066)
 
-    # The following two tests only fail on Linux/Intel with Mesa 18.0.5,
-    # not on Mesa 17.1.4 with the same Intel HD 630 GPU.
-    self.Fail('conformance/programs/program-test.html',
-        ['linux', 'intel'], bug=928530)
-    self.Fail('conformance/uniforms/uniform-default-values.html',
-        ['linux', 'intel'], bug=928530)
-
     ####################
     # Android failures #
     ####################