Add support for Manifest.icons.sizes

content/public/common/manifest.h

Index: content/public/common/manifest.h
diff --git a/content/public/common/manifest.h b/content/public/common/manifest.h
index 93bd342399a6e33c8bd08d95140d416b0f3e2aec..4fb4d64ceb8ff80f7ebbcae2b140b2369b04b2d4 100644
--- a/content/public/common/manifest.h
+++ b/content/public/common/manifest.h
@@ -10,6 +10,7 @@
 #include "base/strings/nullable_string16.h"
 #include "content/common/content_export.h"
 #include "third_party/WebKit/public/platform/WebScreenOrientationLockType.h"
+#include "ui/gfx/geometry/size.h"
 #include "url/gurl.h"
 
 namespace content {
@@ -45,6 +46,10 @@ struct CONTENT_EXPORT Manifest {
     // Default value is 1.0 if the value is missing or invalid.
     double density;
 
+    // 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;
+
     // Default density. Set to 1.0.
     static const double kDefaultDensity;
   };