Update V8 to r7427: Initial merge by git

As required by WebKit r82507

Change-Id: I7ae83ef3f689356043b4929255b7c1dd31d8c5df
diff --git a/src/frames-inl.h b/src/frames-inl.h
index 78bb646..e6eaec0 100644
--- a/src/frames-inl.h
+++ b/src/frames-inl.h
@@ -29,6 +29,8 @@
 #define V8_FRAMES_INL_H_
 
 #include "frames.h"
+#include "isolate.h"
+#include "v8memory.h"
 
 #if V8_TARGET_ARCH_IA32
 #include "ia32/frames-ia32.h"
@@ -91,6 +93,11 @@
 }
 
 
+inline Code* StackFrame::GetContainingCode(Isolate* isolate, Address pc) {
+  return isolate->pc_to_code_cache()->GetCacheEntry(pc)->code;
+}
+
+
 inline Object* StandardFrame::GetExpression(int index) const {
   return Memory::Object_at(GetExpressionAddress(index));
 }