Fix gtest_filter passed for Site Isolation FYI builders.

testing/buildbot/chromium.fyi.json

 {
   "Linux Trusty": {
     "gtest_tests": [
       "accessibility_unittests",
       "app_list_unittests",
       "app_shell_unittests",
       "aura_unittests",
       "interactive_ui_tests",
       "base_unittests",
       "cacheinvalidation_unittests",
@@ skipping 285 matching lines @@
         "swarming": {
           "can_use_on_swarming_builders": true,
           "shards": 5
         }
       }
     ]
   },
   "Site Isolation Linux": {
     "gtest_tests": [
       { "test": "content_unittests", "args": ["--site-per-process"] },
-      { "test": "content_browsertests", "args": ["--site-per-process --gtest_filter=-RenderFrameHostManagerTest.AllowTargetedNavigationsAfterSwap:-RenderFrameHostManagerTest.SupportCrossProcessPostMessage:-SiteIsolationPolicyBrowserTest.CrossSiteDocumentBlockingForDifferentTargets:-RenderFrameHostManagerTest.DontSwapProcessWithOnlyTargetBlank:-RenderFrameHostManagerTest.DisownOpener:-FrameTreeBrowserTest.NavigateWithLeftoverFrames:-RenderFrameHostManagerTest.DontPreemptNavigationWithFrameTreeUpdate:-RenderFrameHostManagerTest.ProcessExitWithSwappedOutViews:-RenderFrameHostManagerTest.SupportCrossProcessPostMessageWithMessagePort:-RenderFrameHostManagerTest.AllowTargetedNavigationsInOpenerAfterSwap"] }
+      { "test": "content_browsertests", "args": ["--site-per-process", "--gtest_filter=-*.AllowTargetedNavigationsAfterSwap:*.SupportCrossProcessPostMessage:*.DontSwapProcessWithOnlyTargetBlank:*.DisownOpener:*.NavigateWithLeftoverFrames:*.DontPreemptNavigationWithFrameTreeUpdate:*.ProcessExitWithSwappedOutViews:*.SupportCrossProcessPostMessageWithMessagePort:*.AllowTargetedNavigationsInOpenerAfterSwap"] }
     ]
   },
   "Site Isolation Win": {
     "gtest_tests": [
       { "test": "content_unittests", "args": ["--site-per-process"] },
-      { "test": "content_browsertests", "args": ["--site-per-process --gtest_filter=-RenderFrameHostManagerTest.AllowTargetedNavigationsAfterSwap:-RenderFrameHostManagerTest.SupportCrossProcessPostMessage:-SiteIsolationPolicyBrowserTest.CrossSiteDocumentBlockingForDifferentTargets:-RenderFrameHostManagerTest.DontSwapProcessWithOnlyTargetBlank:-RenderFrameHostManagerTest.DisownOpener:-FrameTreeBrowserTest.NavigateWithLeftoverFrames:-RenderFrameHostManagerTest.DontPreemptNavigationWithFrameTreeUpdate:-RenderFrameHostManagerTest.ProcessExitWithSwappedOutViews:-RenderFrameHostManagerTest.SupportCrossProcessPostMessageWithMessagePort:-RenderFrameHostManagerTest.AllowTargetedNavigationsInOpenerAfterSwap"] }
+      { "test": "content_browsertests", "args": ["--site-per-process", "--gtest_filter=-*.AllowTargetedNavigationsAfterSwap:*.SupportCrossProcessPostMessage:*.DontSwapProcessWithOnlyTargetBlank:*.DisownOpener:*.NavigateWithLeftoverFrames:*.DontPreemptNavigationWithFrameTreeUpdate:*.ProcessExitWithSwappedOutViews:*.SupportCrossProcessPostMessageWithMessagePort:*.AllowTargetedNavigationsInOpenerAfterSwap"] }
     ]
   },
   "Linux ChromeOS MSan Tests": {
     "gtest_tests": [
       "accessibility_unittests",
       "app_list_unittests",
       "app_shell_browsertests",
       "aura_unittests",
       "base_unittests",
       "cacheinvalidation_unittests",
@@ skipping 52 matching lines @@
     "gtest_tests": [
       {"test": "browser_tests", "shard_index": 1, "total_shards": 3}
     ]
   },
   "Linux ChromeOS MSan Browser (3)": {
     "gtest_tests": [
       {"test": "browser_tests", "shard_index": 2, "total_shards": 3}
     ]
   }
 }