2 files changed, 13 insertions, 21 deletions
diff --git a/include/gpu/GrResourceKey.h b/include/gpu/GrResourceKey.h
index 5e9bf1f5c0..90b84d72bf 100644
--- a/include/gpu/GrResourceKey.h
+++ b/include/gpu/GrResourceKey.h
@@ -8,13 +8,13 @@
 #ifndef GrResourceKey_DEFINED
 #define GrResourceKey_DEFINED
 
-#include <new>
 #include "../private/SkOnce.h"
 #include "../private/SkTemplates.h"
 #include "../private/SkTo.h"
 #include "GrTypes.h"
 #include "SkData.h"
 #include "SkString.h"
+#include <new>
 
 uint32_t GrResourceKeyHash(const uint32_t* data, size_t size);
 
@@ -315,22 +315,18 @@ static inline void gr_init_static_unique_key_once(SkAlignedSTStorage<1,GrUniqueK
 // The cache listens for these messages to purge junk resources proactively.
 class GrUniqueKeyInvalidatedMessage {
 public:
-    GrUniqueKeyInvalidatedMessage(const GrUniqueKey& key, uint32_t contextUniqueID)
-            : fKey(key), fContextID(contextUniqueID) {
-        SkASSERT(SK_InvalidUniqueID != contextUniqueID);
-    }
+    explicit GrUniqueKeyInvalidatedMessage(const GrUniqueKey& key) : fKey(key) {}
 
-    GrUniqueKeyInvalidatedMessage(const GrUniqueKeyInvalidatedMessage&) = default;
+    GrUniqueKeyInvalidatedMessage(const GrUniqueKeyInvalidatedMessage& that) : fKey(that.fKey) {}
 
-    GrUniqueKeyInvalidatedMessage& operator=(const GrUniqueKeyInvalidatedMessage&) = default;
+    GrUniqueKeyInvalidatedMessage& operator=(const GrUniqueKeyInvalidatedMessage& that) {
+        fKey = that.fKey;
+        return *this;
+    }
 
     const GrUniqueKey& key() const { return fKey; }
 
-    bool shouldSend(uint32_t inboxID) const { return fContextID == inboxID; }
-
 private:
     GrUniqueKey fKey;
-    uint32_t fContextID;
 };
-
 #endif
diff --git a/include/private/SkMessageBus.h b/include/private/SkMessageBus.h
index 418235d68e..19e937555d 100644
--- a/include/private/SkMessageBus.h
+++ b/include/private/SkMessageBus.h
@@ -14,17 +14,13 @@
 #include "SkTDArray.h"
 #include "SkTypes.h"
 
-/**
- * Message must implement bool Message::shouldSend(uint32_t inboxID) const. Perhaps someday we
- * can use std::experimental::is_detected to avoid this requirement by sending to all inboxes when
- * the method is not detected on Message.
- */
 template <typename Message>
 class SkMessageBus : SkNoncopyable {
 public:
-    // Post a message to be received by Inboxes for this Message type. Checks
-    // Message::shouldSend() for each inbox. Threadsafe.
-    static void Post(const Message& m);
+    // Post a message to be received by Inboxes for this Message type.  Threadsafe.
+    // If id is SK_InvalidUniqueID then it will be sent to all inboxes.
+    // Otherwise it will be sent to the inbox with that id.
+    static void Post(const Message& m, uint32_t destID = SK_InvalidUniqueID);
 
     class Inbox {
     public:
@@ -106,11 +102,11 @@ template <typename Message>
 SkMessageBus<Message>::SkMessageBus() {}
 
 template <typename Message>
-/*static*/ void SkMessageBus<Message>::Post(const Message& m) {
+/*static*/ void SkMessageBus<Message>::Post(const Message& m, uint32_t destID) {
     SkMessageBus<Message>* bus = SkMessageBus<Message>::Get();
     SkAutoMutexAcquire lock(bus->fInboxesMutex);
     for (int i = 0; i < bus->fInboxes.count(); i++) {
-        if (m.shouldSend(bus->fInboxes[i]->fUniqueID)) {
+        if (SK_InvalidUniqueID == destID || bus->fInboxes[i]->fUniqueID == destID) {
             bus->fInboxes[i]->receive(m);
         }
     }