Disable ExtensionApiCaptureTest.CaptureVisibleFile on Windows, Linux & ChromeOS.

This test is causing a fair amount of flake, disabling.

TBR=dbertoni@chromium.org

Bug: 1107934
Change-Id: Ieda5264517dcfd69f275379434ca3da9a0649f33
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2313121Reviewed-by: James MacLean <wjmaclean@chromium.org>
Commit-Queue: James MacLean <wjmaclean@chromium.org>
Cr-Commit-Position: refs/heads/master@{#790861}

chrome/browser/extensions/extension_tabs_apitest.cc

@@ -160,7 +160,13 @@ IN_PROC_BROWSER_TEST_F(ExtensionApiCaptureTest, CaptureVisibleTabRace) {
                                   "test_race.html")) << message_;
 }
 
-IN_PROC_BROWSER_TEST_F(ExtensionApiCaptureTest, CaptureVisibleFile) {
+// https://crbug.com/1107934 Flaky on Windows, Linux, ChromeOS.
+#if defined(OS_LINUX) || defined(OS_WIN) || defined(OS_CHROMEOS)
+#define MAYBE_CaptureVisibleFile DISABLED_CaptureVisibleFile
+#else
+#define MAYBE_CaptureVisibleFile CaptureVisibleFile
+#endif
+IN_PROC_BROWSER_TEST_F(ExtensionApiCaptureTest, MAYBE_CaptureVisibleFile) {
   ASSERT_TRUE(RunExtensionSubtest("tabs/capture_visible_tab",
                                   "test_file.html")) << message_;
 }