Revert of Assert sequence validity on non-thread-safe RefCount manipulations (2)

content/browser/gpu/gpu_data_manager_impl.cc

Index: content/browser/gpu/gpu_data_manager_impl.cc
diff --git a/content/browser/gpu/gpu_data_manager_impl.cc b/content/browser/gpu/gpu_data_manager_impl.cc
index 0d5202676762de99ed03af43cad758a6407fc045..0c74a29bdcf0d0025317a89c2863504a25a8c2e7 100644
--- a/content/browser/gpu/gpu_data_manager_impl.cc
+++ b/content/browser/gpu/gpu_data_manager_impl.cc
@@ -22,10 +22,6 @@
 void GpuDataManagerImpl::InitializeForTesting(
     const std::string& gpu_blacklist_json, const gpu::GPUInfo& gpu_info) {
   base::AutoLock auto_lock(lock_);
-  // Relax the cross-thread access restriction to non-thread-safe RefCount.
-  // See the comment in Initialize().
-  base::ScopedAllowCrossThreadRefCountAccess
-      allow_cross_thread_ref_count_access;
   private_->InitializeForTesting(gpu_blacklist_json, gpu_info);
 }
 
@@ -150,20 +146,11 @@
 
 void GpuDataManagerImpl::Initialize() {
   base::AutoLock auto_lock(lock_);
-  // Relax the cross-thread access restriction to non-thread-safe RefCount.
-  // GpuDataManagerImplPrivate has GpuControlLists, which touches
-  // non-thread-safe GpuControlListEntry RefCount in the lock.
-  base::ScopedAllowCrossThreadRefCountAccess
-      allow_cross_thread_ref_count_access;
   private_->Initialize();
 }
 
 void GpuDataManagerImpl::UpdateGpuInfo(const gpu::GPUInfo& gpu_info) {
   base::AutoLock auto_lock(lock_);
-  // Relax the cross-thread access restriction to non-thread-safe RefCount.
-  // See the comment in Initialize().
-  base::ScopedAllowCrossThreadRefCountAccess
-      allow_cross_thread_ref_count_access;
   private_->UpdateGpuInfo(gpu_info);
 }
 
@@ -269,10 +256,6 @@
 bool GpuDataManagerImpl::UpdateActiveGpu(uint32_t vendor_id,
                                          uint32_t device_id) {
   base::AutoLock auto_lock(lock_);
-  // Relax the cross-thread access restriction to non-thread-safe RefCount.
-  // See the comment in Initialize().
-  base::ScopedAllowCrossThreadRefCountAccess
-      allow_cross_thread_ref_count_access;
   return private_->UpdateActiveGpu(vendor_id, device_id);
 }