Revert "Make GPU cache invalidation SkMessageBus messages go to one GrContext."

This reverts commit f4c5bb9aba485aa47c27b15905d81992b7cf4707.

Reason for revert: Accidentally submitted without CQ

Original change's description:
> Make GPU cache invalidation SkMessageBus messages go to one GrContext.
> 
> Makes it so the template param to SkMessageBus must implement:
> bool shouldSend(uint32_t inboxID) const
> 
> Updates all GPU backend message types to only go to the GrContext that
> is adding a cache entry.
> 
> Bug: skia:
> Change-Id: I3e8a4eb90654b7b8ac57cac9fb508c0ef1d51058
> Reviewed-on: https://skia-review.googlesource.com/140220
> Reviewed-by: Robert Phillips <robertphillips@google.com>
> Reviewed-by: Jim Van Verth <jvanverth@google.com>

TBR=jvanverth@google.com,bsalomon@google.com,robertphillips@google.com

Change-Id: Iadb667d8027341703d254325320ddaa528fb33a1
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:
Reviewed-on: https://skia-review.googlesource.com/140800
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>

1 files changed, 1 insertions, 3 deletions

diff --git a/src/core/SkResourceCache.h b/src/core/SkResourceCache.h
index 4794669492..6087be7824 100644
--- a/src/core/SkResourceCache.h
+++ b/src/core/SkResourceCache.h
@@ -112,9 +112,7 @@ public:
     // Used with SkMessageBus
     struct PurgeSharedIDMessage {
         PurgeSharedIDMessage(uint64_t sharedID) : fSharedID(sharedID) {}
-        // SkResourceCache is typically used as a singleton and we don't label Inboxes so all
-        // messages go to all inboxes.
-        bool shouldSend(uint32_t inboxID) const { return true; }
+
         uint64_t    fSharedID;
     };