Android fyi content_unittests fix.

Disables a couple of tests that are already marked as flaky
on other platforms, and currently failing on our FYI bots:
http://build.chromium.org/p/chromium.fyi/builders/Chromium%20Linux%20Android/builds/7638/steps/Test%20suite%20content_unittests/logs/stdio

BUG=104950
TEST=content_unittests runs fine on android


Review URL: http://codereview.chromium.org/9875017

git-svn-id: http://src.chromium.org/svn/trunk/src/build@129430 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

android/gtest_filter/content_unittests_disabled

@@ -38,3 +38,6 @@ AudioRendererHostTest.SimulateError
 AudioRendererHostTest.SimulateErrorAndClose
 # crbug.com/118542
 GPUTestExpectationsParserTest.WebGLTestExpectationsValidation
+# crbug.com/104950
+DeviceOrientationProviderTest.ObserverNotRemoved
+DeviceOrientationProviderTest.StartFailing