[profiler] Web UI: add summary of opts/deopts.

src/code-events.h

Index: src/code-events.h
diff --git a/src/code-events.h b/src/code-events.h
index db43d88b681a12dc04c95c1d37bbb7c51b11b0d4..056aa4139d6955520d18a8ac5b5016928d6a72a8 100644
--- a/src/code-events.h
+++ b/src/code-events.h
@@ -105,7 +105,9 @@ class CodeEventListener {
   virtual void CodeMovingGCEvent() = 0;
   virtual void CodeDisableOptEvent(AbstractCode* code,
                                    SharedFunctionInfo* shared) = 0;
-  virtual void CodeDeoptEvent(Code* code, Address pc, int fp_to_sp_delta) = 0;
+  enum DeoptKind { kSoft, kLazy, kEager };
+  virtual void CodeDeoptEvent(Code* code, DeoptKind kind, Address pc,
+                              int fp_to_sp_delta) = 0;
 };
 
 class CodeEventDispatcher {
@@ -170,8 +172,9 @@ class CodeEventDispatcher {
   void CodeDisableOptEvent(AbstractCode* code, SharedFunctionInfo* shared) {
     CODE_EVENT_DISPATCH(CodeDisableOptEvent(code, shared));
   }
-  void CodeDeoptEvent(Code* code, Address pc, int fp_to_sp_delta) {
-    CODE_EVENT_DISPATCH(CodeDeoptEvent(code, pc, fp_to_sp_delta));
+  void CodeDeoptEvent(Code* code, CodeEventListener::DeoptKind kind, Address pc,
+                      int fp_to_sp_delta) {
+    CODE_EVENT_DISPATCH(CodeDeoptEvent(code, kind, pc, fp_to_sp_delta));
   }
 #undef CODE_EVENT_DISPATCH