Add related_applications field to manifest parser.

content/renderer/manifest/manifest_parser.h

Index: content/renderer/manifest/manifest_parser.h
diff --git a/content/renderer/manifest/manifest_parser.h b/content/renderer/manifest/manifest_parser.h
index 13e330b0ddbb18ca0cc78dcc98199d027f290015..8c605de5a137dffa90952121fc052fca93adda72 100644
--- a/content/renderer/manifest/manifest_parser.h
+++ b/content/renderer/manifest/manifest_parser.h
@@ -135,6 +135,26 @@ class CONTENT_EXPORT ManifestParser {
   // Returns true iff the string could be parsed as the boolean true.
   bool ParseGCMUserVisibleOnly(const base::DictionaryValue& dictionary);
 
+  // Parses the platform field of a related application.
+  // Returns CHROME_RELATED_APPLICATION_PLATFORM_UNSPECIFIED if the parsing
+  // failed.
+  Manifest::ChromeRelatedApplicationPlatform
+  ParseChromeRelatedApplicationPlatform(
+      const base::DictionaryValue& application);
+
+  // Parses the id field of a related application.
+  // Returns the parsed string if any, a null string if the parsing failed.
+  base::NullableString16 ParseChromeRelatedApplicationId(
+      const base::DictionaryValue& application);
+
+  // Parses the 'chrome_related_applications' field of the manifest.
+  // Returns a vector of Manifest::RelatedApplication with the successfully
+  // parsed applications, if any. An empty vector if the field was not present
+  // or empty.
+  std::vector<Manifest::ChromeRelatedApplication>
+  ParseChromeRelatedApplications(
+      const base::DictionaryValue& dictionary);
+
   const base::StringPiece& data_;
   GURL manifest_url_;
   GURL document_url_;