Update V8 to r7427: Initial merge by git

As required by WebKit r82507

Change-Id: I7ae83ef3f689356043b4929255b7c1dd31d8c5df
diff --git a/src/safepoint-table.cc b/src/safepoint-table.cc
index d2ec54c..28cf6e6 100644
--- a/src/safepoint-table.cc
+++ b/src/safepoint-table.cc
@@ -25,11 +25,14 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
+#include "v8.h"
+
 #include "safepoint-table.h"
 
 #include "deoptimizer.h"
 #include "disasm.h"
 #include "macro-assembler.h"
+#include "zone-inl.h"
 
 namespace v8 {
 namespace internal {