Enabled below browser_tests on coverage bot.

tools/code_coverage/coverage_posix.py

 #!/usr/bin/env python
 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """Generate and process code coverage.
 
 TODO(jrg): rename this from coverage_posix.py to coverage_all.py!
 
 Written for and tested on Mac, Linux, and Windows.  To use this script
@@ skipping 232 matching lines @@
         ('AutomatedUITest.TheOneAndOnlyTest',
          'AutomatedUITestBase.DragOut',), },
 }
 
 """Since random tests are failing/hanging on coverage bot, we are enabling
    tests feature by feature. crbug.com/159748
 """
 gTestInclusions = {
   'linux2': {
     'browser_tests':
-        (# 'src/chrome/browser/downloads' related tests.
+        (# 'src/chrome/browser/downloads'
          'SavePageBrowserTest.*',
          'SavePageAsMHTMLBrowserTest.*',
          'DownloadQueryTest.*',
          'DownloadDangerPromptTest.*',
          'DownloadTest.*',
-         # 'src/chrome/browser/net' related tests.
+         # 'src/chrome/browser/net'
          'CookiePolicyBrowserTest.*',
          'FtpBrowserTest.*',
          'LoadTimingObserverTest.*',
          'PredictorBrowserTest.*',
          'ProxyBrowserTest.*',
-         # 'src/chrome/browser/extensions' related tests.
+         # 'src/chrome/browser/extensions'
          'Extension*.*',
          'WindowOpenPanelDisabledTest.*',
          'WindowOpenPanelTest.*',
          'WebstoreStandalone*.*',
          'CommandLineWebstoreInstall.*',
          'WebViewTest.*',
          'RequirementsCheckerBrowserTest.*',
          'ProcessManagementTest.*',
          'PlatformAppBrowserTest.*',
          'PlatformAppDevToolsBrowserTest.*',
@@ skipping 30 matching lines @@
          'LaunchWebAuthFlowFunctionTest.*',
          'FileSystemApiTest.*',
          'ScriptBadgeApiTest.*',
          'PageAsBrowserActionApiTest.*',
          'PageActionApiTest.*',
          'BrowserActionApiTest.*',
          'DownloadExtensionTest.*',
          'DnsApiTest.*',
          'DeclarativeApiTest.*',
          'BluetoothApiTest.*',
-         'AllUrlsApiTest.*',),
+         'AllUrlsApiTest.*',
+         # 'src/chrome/browser/nacl_host'
+         'nacl_host.*',
+         # 'src/chrome/browser/automation'
+         'AutomationMiscBrowserTest.*',
+         'AutomationTabHelperBrowserTest.*',
+         # 'src/chrome/browser/autofill'
+         'FormStructureBrowserTest.*',
+         'AutofillPopupViewBrowserTest.*',
+         'AutofillTest.*',
+         # 'src/chrome/browser/autocomplete'
+         'AutocompleteBrowserTest.*',
+         # 'src/chrome/browser/captive_portal'
+         'CaptivePortalBrowserTest.*',
+         # 'src/chrome/browser/geolocation'
+         'GeolocationAccessTokenStoreTest.*',
+         'GeolocationBrowserTest.*', ),
   },
 }
 
 
 def TerminateSignalHandler(sig, stack):
   """When killed, try and kill our child processes."""
   signal.signal(sig, signal.SIG_DFL)
   for pid in gChildPIDs:
     if 'kill' in os.__all__:  # POSIX
       os.kill(pid, sig)
@@ skipping 893 matching lines @@
   if options.trim:
     coverage.TrimTests()
   coverage.RunTests()
   if options.genhtml:
     coverage.GenerateHtml()
   return 0
 
 
 if __name__ == '__main__':
   sys.exit(main())