report.format_html now ignores APIs not passed to it.

src/report/report.py

Index: src/report/report.py
diff --git a/src/report/report.py b/src/report/report.py
index ba7cb8313590afb94b79dab4f18b7f7feacc525b..9ca14985bc26e4db597d336a169eac17a2925297 100644
--- a/src/report/report.py
+++ b/src/report/report.py
@@ -268,6 +268,10 @@ def format_html(string, apis):
       # standalone API (chrome.superapi.api) and we can just take the top-level
       # status of the API.
       api = match_group
+
+      if api not in apis:
+        return match.group(0)
+
       status = apis[api]['status']
       return '<span class="ca-feature {}">{}</span>'.format(
           status, match.group(0))
@@ -275,6 +279,9 @@ def format_html(string, apis):
     api, member = chrome_app.apis.CHROME_API_AND_MEMBER_REGEX.match(
       match.group(0)).groups()
 
+    if api not in apis:
+      return match.group(0)
+
     status = None
     while True:
       # Check if the member has a status; if it does, use that, otherwise jump