Add flaky suppression for DepthCaptureIntegrationTest failures for Nexus 5X.

gpu_tests.depth_capture_integration_test.DepthCaptureIntegrationTest.DepthCapture_depthStreamToRGBAFloatTexture
and
gpu_tests.depth_capture_integration_test.DepthCaptureIntegrationTest.DepthCapture_depthStreamToRGBAUint8Texture
are flaky on Android Release (Nexus 5X).

TBR=kbr@chromium.org

Bug: 899748
Change-Id: I0c69c45f563b6eada65ea586a30bb8aa0d813d1b
Reviewed-on: https://chromium-review.googlesource.com/c/1306215Reviewed-by: Ria Jiang <riajiang@chromium.org>
Reviewed-by: Kenneth Russell <kbr@chromium.org>
Commit-Queue: Ria Jiang <riajiang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#603670}

content/test/gpu/gpu_tests/depth_capture_expectations.py

@@ -21,5 +21,10 @@ class DepthCaptureExpectations(GpuTestExpectations):
                ['highsierra', ('amd', 0x6821)], bug=819661)
     self.Flaky('DepthCapture_depthStreamToRGBAUint8Texture',
                ['highsierra', ('intel', 0x0a2e)], bug=824438)
+
+    self.Flaky('DepthCapture_depthStreamToRGBAFloatTexture',
+               ['android', ('qualcomm', 'Adreno (TM) 418')], bug=899748)
+    self.Flaky('DepthCapture_depthStreamToRGBAUint8Texture',
+               ['android', ('qualcomm', 'Adreno (TM) 418')], bug=899748)
     self.Fail('DepthCapture_depthStreamToR32FloatTexture',
               ['android', ('qualcomm', 'Adreno (TM) 330')], bug=765913)