Add additional hosts to hard-coded service URL presubmit check

This adds additional domains to the root PRESUBMIT check,
"_CheckHardcodedGoogleHostsInLowerLayers", based on hostnames
currently used in Chromium.

Previously, this check only validated that "google.com" was not
hard-coded, but did not catch other common hostnames:

- gstatic.com
- googleapis.com
- googlezip.net
- googledrive.com
- appspot.com

Note that this check is non-blocking, only prompting the user
with a warning before continuing the submit operation.

BUG=164568
TEST=PRESUBMIT_test.py

Review URL: https://codereview.chromium.org/1403673003

Cr-Commit-Position: refs/heads/master@{#359869}

AUTHORS

@@ -237,6 +237,7 @@ Ian Scott <ian.scott@arteris.com>
 Ibrar Ahmed <ibrar.ahmad@gmail.com>
 Ilia K <ki.stfu@gmail.com>
 Ion Rosca <rosca@adobe.com>
+Isaac Reilly <reillyi@amazon.com>
 Ivan Sham <ivansham@amazon.com>
 J. Ryan Stinnett <jryans@chromium.org>
 Jacob Mandelson <jacob@mandelson.org>

PRESUBMIT.py

@@ -900,7 +900,8 @@ def FilterFile(affected_file):
                   _TEST_CODE_EXCLUDED_PATHS +
                   input_api.DEFAULT_BLACK_LIST))
 
-  base_pattern = '"[^"]*google\.com[^"]*"'
+  base_pattern = ('"[^"]*(google|googleapis|googlezip|googledrive|appspot)'
+                  '\.(com|net)[^"]*"')
   comment_pattern = input_api.re.compile('//.*%s' % base_pattern)
   pattern = input_api.re.compile(base_pattern)
   problems = []  # items are (filename, line_number, line)

PRESUBMIT_test.py

@@ -986,6 +986,35 @@ def testCheckAndroidCrLogUsage(self):
     self.assertTrue('HasDottedTag.java' in msgs[4].items)
     self.assertTrue('HasOldTag.java' in msgs[4].items)
 
+class HardcodedGoogleHostsTest(unittest.TestCase):
+
+  def testWarnOnAssignedLiterals(self):
+    input_api = MockInputApi()
+    input_api.files = [
+      MockFile('content/file.cc',
+               ['char* host = "https://www.google.com";']),
+      MockFile('content/file.cc',
+               ['char* host = "https://www.googleapis.com";']),
+      MockFile('content/file.cc',
+               ['char* host = "https://clients1.google.com";']),
+    ]
+
+    warnings = PRESUBMIT._CheckHardcodedGoogleHostsInLowerLayers(
+      input_api, MockOutputApi())
+    self.assertEqual(1, len(warnings))
+    self.assertEqual(3, len(warnings[0].items))
+
+  def testAllowInComment(self):
+    input_api = MockInputApi()
+    input_api.files = [
+      MockFile('content/file.cc',
+               ['char* host = "https://www.aol.com"; // google.com'])
+    ]
+
+    warnings = PRESUBMIT._CheckHardcodedGoogleHostsInLowerLayers(
+      input_api, MockOutputApi())
+    self.assertEqual(0, len(warnings))
+
 
 if __name__ == '__main__':
   unittest.main()