Reimplement gpu message bus for invalidated bitmap gen IDs

src/gpu/GrGpuResource.cpp

 
 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrGpuResource.h"
 #include "GrResourceCache2.h"
@@ skipping 64 matching lines @@
     if (this->wasDestroyed()) {
         return;
     }
 
     size_t oldSize = fGpuMemorySize;
     SkASSERT(kInvalidGpuMemorySize != oldSize);
     fGpuMemorySize = kInvalidGpuMemorySize;
     get_resource_cache2(fGpu)->resourceAccess().didChangeGpuMemorySize(this, oldSize);
 }
 
+void GrGpuResource::removeContentKey() {
+    SkASSERT(fContentKey.isValid());
+    get_resource_cache2(fGpu)->resourceAccess().willRemoveContentKey(this);
+    fContentKey.reset();
+}
+
 bool GrGpuResource::setContentKey(const GrContentKey& key) {
     // Currently this can only be called once and can't be called when the resource is scratch.
     SkASSERT(this->internalHasRef());
+    SkASSERT(key.isValid());
 
     // Wrapped and uncached resources can never have a content key.
     if (!this->cacheAccess().isBudgeted()) {
         return false;
     }
 
     if (fContentKey.isValid() || this->wasDestroyed()) {
         return false;
     }
 
@@ skipping 48 matching lines @@
 }
 
 uint32_t GrGpuResource::CreateUniqueID() {
     static int32_t gUniqueID = SK_InvalidUniqueID;
     uint32_t id;
     do {
         id = static_cast<uint32_t>(sk_atomic_inc(&gUniqueID) + 1);
     } while (id == SK_InvalidUniqueID);
     return id;
 }