Added page to Observatory to display native memory allocation information.

runtime/observatory/lib/src/elements/vm_view.dart

Index: runtime/observatory/lib/src/elements/vm_view.dart
diff --git a/runtime/observatory/lib/src/elements/vm_view.dart b/runtime/observatory/lib/src/elements/vm_view.dart
index b635391d041d4dbc3a32726cf6ef00e7afad7b98..32dd871da18abdbe9a454e825447ede5fd1d704f 100644
--- a/runtime/observatory/lib/src/elements/vm_view.dart
+++ b/runtime/observatory/lib/src/elements/vm_view.dart
@@ -211,7 +211,7 @@ class VMViewElement extends HtmlElement implements Renderable {
                     ..text = 'native heap allocation count',
                   new DivElement()
                     ..classes = ['memberValue']
-                    ..text = _vm.heapAllocationCount
+                    ..text = '${_vm.heapAllocationCount}'
                 ],
  
               new BRElement(),
@@ -231,7 +231,18 @@ class VMViewElement extends HtmlElement implements Renderable {
                       new AnchorElement(href: Uris.timeline())
                         ..text = 'timeline'
                     ]
-                ]
+                ],
+            new DivElement()
+              ..classes = ['memberItem']
+              ..children = [
+                new DivElement()
+                  ..classes = ['memberName']
+                  ..children = [
+                    new SpanElement()..text = 'view ',
+                    new AnchorElement(href: Uris.nativeMemory())
+                      ..text = 'native memory profile'
+                  ]
+              ]
             ],
           new BRElement(),
           new HeadingElement.h1()..text = 'Isolates (${isolates.length})',