Parse "purpose" member from Web Manifest

content/public/common/manifest.h

 // Copyright 2014 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.
 
 #ifndef CONTENT_PUBLIC_COMMON_MANIFEST_H_
 #define CONTENT_PUBLIC_COMMON_MANIFEST_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <vector>
 
 #include "base/strings/nullable_string16.h"
 #include "base/strings/string16.h"
 #include "content/common/content_export.h"
 #include "third_party/WebKit/public/platform/WebDisplayMode.h"
 #include "third_party/WebKit/public/platform/modules/screen_orientation/WebScreenOrientationLockType.h"
 #include "ui/gfx/geometry/size.h"
 #include "url/gurl.h"
 
 namespace content {
 
 // The Manifest structure is an internal representation of the Manifest file
 // described in the "Manifest for Web Application" document:
 // http://w3c.github.io/manifest/
 struct CONTENT_EXPORT Manifest {
   // Structure representing an icon as per the Manifest specification, see:
   // http://w3c.github.io/manifest/#dfn-icon-object
   struct CONTENT_EXPORT Icon {
+    enum IconPurpose {
+      ANY = 0,
+      BADGE,
+    };
+
     Icon();
     Icon(const Icon& other);
     ~Icon();
 
     bool operator==(const Icon& other) const;
 
     // MUST be a valid url. If an icon doesn't have a valid URL, it will not be
     // successfully parsed, thus will not be represented in the Manifest.
     GURL src;
 
     // Empty if the parsing failed or the field was not present. The type can be
     // any string and doesn't have to be a valid image MIME type at this point.
     // It is up to the consumer of the object to check if the type matches a
     // supported type.
     base::string16 type;
 
     // Empty if the parsing failed, the field was not present or empty.
     // The special value "any" is represented by gfx::Size(0, 0).
     std::vector<gfx::Size> sizes;
+
+    // Empty if the field was not present or not of type "string". Defaults to
+    // {IconPurpose::ANY} for all other parsing exceptions.

[pkotwicz, 2016/10/18 17:16:12]

The curly braces around {IconPurpose::ANY} are new notation to me. Did you see
it elsewhere? I probably missed the notation getting introduced elsewhere

[F, 2016/10/18 19:29:55]

Fixed. Sorry I meant a vector with IconPurpose::ANY as value.

+    std::vector<IconPurpose> purpose;
   };
 
   // Structure representing a related application.
   struct CONTENT_EXPORT RelatedApplication {
     RelatedApplication();
     ~RelatedApplication();
 
     // The platform on which the application can be found. This can be any
     // string, and is interpreted by the consumer of the object. Empty if the
     // parsing failed.
@@ skipping 76 matching lines @@
   static const size_t kMaxIPCStringLength;
 
   // Constant representing an invalid color. Set to a value outside the
   // range of a 32-bit integer.
   static const int64_t kInvalidOrMissingColor;
 };
 
 } // namespace content
 
 #endif // CONTENT_PUBLIC_COMMON_MANIFEST_H_