Sync core/timing/ interfaces with their specs, or lack thereof

Source/core/timing/ConsoleMemory.idl

Index: Source/core/timing/ConsoleMemory.idl
diff --git a/Source/core/timing/ConsoleMemory.idl b/Source/core/timing/ConsoleMemory.idl
index 7aa4952a4b224e0a68e9553060907557f3f0cff8..2cf01b61ecfc8d0a7e622e12f676c1766f1a5121 100644
--- a/Source/core/timing/ConsoleMemory.idl
+++ b/Source/core/timing/ConsoleMemory.idl
@@ -2,9 +2,10 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-[
-    ImplementedAs=ConsoleMemory,
-] partial interface Console {
+// TODO(philipj): There is no spec for the Memory Info API, see blink-dev:
+// https://groups.google.com/a/chromium.org/d/msg/blink-dev/g5YRCGpC9vs/b4OJz71NmPwJ
+
+partial interface Console {
     // We can't make the attribute readonly as it breaks existing code that relies on being able to assign to console.memory in strict mode. Instead, the setter just ignores the passed value.  http://crbug.com/468611
-    attribute MemoryInfo memory;
+    [Measure] attribute MemoryInfo memory;
 };