Update V8 to r4924 as required by WebKit r61871

Change-Id: Ic819dad0c1c9e035b8ffd306c96656ba87c5e85a
diff --git a/ChangeLog b/ChangeLog
index 941c314..95c1133 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,33 @@
+2010-06-23: Version 2.2.19
+
+        Fix bug that causes the build to break when profillingsupport=off
+        (issue 738).
+
+        Added expose-externalize-string flag for testing extensions.
+
+        Resolve linker issues with using V8 as a DLL causing a number of
+        problems with unresolved symbols.
+
+        Fix build failure for cctests when ENABLE_DEBUGGER_SUPPORT is not
+        defined.
+
+        Performance improvements on all platforms.
+
+
+2010-06-16: Version 2.2.18
+
+        Added API functions to retrieve information on indexed properties
+        managed by the embedding layer.  Fixes bug 737.
+
+        Make ES5 Object.defineProperty support array elements.  Fixes bug 619.
+
+        Add heap profiling to the API.
+
+        Remove old named property query from the API.
+
+        Incremental performance improvements.
+
+
 2010-06-14: Version 2.2.17
 
         Improved debugger support for stepping out of functions.