Disable flaky test.

BUG=789515
TBR=alexis.menard@intel.com

Change-Id: Ic5ad0bc6247ec7548887962f6d204b63da150fc6
Reviewed-on: https://chromium-review.googlesource.com/803855
Commit-Queue: Avi Drissman <avi@chromium.org>
Reviewed-by: Avi Drissman <avi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#521024}

content/browser/generic_sensor_browsertest.cc

@@ -233,7 +233,13 @@ class GenericSensorBrowserTest : public ContentBrowserTest {
   DISALLOW_COPY_AND_ASSIGN(GenericSensorBrowserTest);
 };
 
-IN_PROC_BROWSER_TEST_F(GenericSensorBrowserTest, AmbientLightSensorTest) {
+// Flakily crashes on Linux ASAN/TSAN bots.  https://crbug.com/789515
+#if defined(OS_LINUX)
+#define MAYBE_AmbientLightSensorTest DISABLED_AmbientLightSensorTest
+#else
+#define MAYBE_AmbientLightSensorTest AmbientLightSensorTest
+#endif
+IN_PROC_BROWSER_TEST_F(GenericSensorBrowserTest, MAYBE_AmbientLightSensorTest) {
   // The test page will create an AmbientLightSensor object in Javascript,
   // expects to get events with fake values then navigates to #pass.
   GURL test_url =