Add Gpu Tracing to Ganesh

src/core/SkTDynamicHash.h

Index: src/core/SkTDynamicHash.h
diff --git a/src/core/SkTDynamicHash.h b/src/core/SkTDynamicHash.h
index 80570ae0acb9b4d86f373ad85230da63e571b09e..a4da87633f81bb57fee58cd6bb0e37542e87a9a3 100644
--- a/src/core/SkTDynamicHash.h
+++ b/src/core/SkTDynamicHash.h
@@ -24,6 +24,16 @@ public:
         SkASSERT(this->validate());
     }
 
+    SkTDynamicHash(const SkTDynamicHash& other) {
+        fCount = other.fCount;
+        fDeleted = other.fDeleted;
+        fCapacity = other.fCapacity;
+        fArray = (T**)sk_calloc_throw(sizeof(T*) * fCapacity);
+        for (int i = 0; i < fCapacity; ++i) {
+            fArray[i] = other.fArray[i];
+        }
+    }
+
     ~SkTDynamicHash() {
         sk_free(fArray);
     }