Only activate radio buttons in ContentSettingsBubble for valid content settings. This prevents fail…

components/content_settings/core/browser/host_content_settings_map.h

Index: components/content_settings/core/browser/host_content_settings_map.h
diff --git a/components/content_settings/core/browser/host_content_settings_map.h b/components/content_settings/core/browser/host_content_settings_map.h
index bf174b514bc5e24004205f8c52d2b27ba74652b0..e970af8c6c6ab6593d78cb5d184013b8508f416e 100644
--- a/components/content_settings/core/browser/host_content_settings_map.h
+++ b/components/content_settings/core/browser/host_content_settings_map.h
@@ -196,6 +196,13 @@ class HostContentSettingsMap : public content_settings::Observer,
       const std::string& resource_identifier,
       std::unique_ptr<base::Value> value);
 
+  // Check if a call to SetNarrowestContentSetting would succeed or if it would
+  // fail because of an invalid pattern.
+  bool CanSetNarrowestContentSetting(
+      const GURL& primary_url,
+      const GURL& secondary_url,
+      ContentSettingsType type) const;
+
   // Sets the most specific rule that currently defines the setting for the
   // given content type. TODO(raymes): Remove this once all content settings
   // are scoped to origin scope. There is no scope more narrow than origin
@@ -364,6 +371,11 @@ class HostContentSettingsMap : public content_settings::Observer,
       const std::string& resource_identifier,
       content_settings::SettingInfo* info) const;
 
+  content_settings::PatternPair GetNarrowestPatterns(
+      const GURL& primary_url,
+      const GURL& secondary_url,
+      ContentSettingsType type) const;
+
   static std::unique_ptr<base::Value> GetContentSettingValueAndPatterns(
       const content_settings::ProviderInterface* provider,
       const GURL& primary_url,