Add data-URI support class to dart:core (next to Uri).

runtime/vm/object_store.h

Index: runtime/vm/object_store.h
diff --git a/runtime/vm/object_store.h b/runtime/vm/object_store.h
index 8fd89294577606833fbfd752459e560c2e366c7d..f40eafda0ec3d79a4148153d69d32e52821a3fc0 100644
--- a/runtime/vm/object_store.h
+++ b/runtime/vm/object_store.h
@@ -31,6 +31,7 @@ class ObjectStore {
     kMath,
     kMirrors,
     kTypedData,
+    kUri,
     kVMService,
   };
 
@@ -264,6 +265,7 @@ class ObjectStore {
   RawLibrary* math_library() const { return math_library_; }
   RawLibrary* mirrors_library() const { return mirrors_library_; }
   RawLibrary* typed_data_library() const { return typed_data_library_; }
+  RawLibrary* uri_library() const { return uri_library_; }
   RawLibrary* vmservice_library() const { return vmservice_library_; }
 
   void set_bootstrap_library(BootstrapLibraryId index, const Library& value) {
@@ -298,6 +300,9 @@ class ObjectStore {
       case kTypedData:
         typed_data_library_ = value.raw();
         break;
+      case kUri:
+        uri_library_ = value.raw();
+        break;
       case kVMService:
         vmservice_library_ = value.raw();
         break;
@@ -515,6 +520,7 @@ class ObjectStore {
   RawLibrary* native_wrappers_library_;
   RawLibrary* root_library_;
   RawLibrary* typed_data_library_;
+  RawLibrary* uri_library_;
   RawLibrary* vmservice_library_;
   RawGrowableObjectArray* libraries_;
   RawGrowableObjectArray* pending_classes_;