Move gpu memory calculations to Compositor.

content/common/gpu/client/context_provider_command_buffer.cc

Index: content/common/gpu/client/context_provider_command_buffer.cc
diff --git a/content/common/gpu/client/context_provider_command_buffer.cc b/content/common/gpu/client/context_provider_command_buffer.cc
index ba9f0ebfbed6a6f75196c29a7bf89da933557773..8111186f210a7b095d27ebf8bdd6e15d26eeb219 100644
--- a/content/common/gpu/client/context_provider_command_buffer.cc
+++ b/content/common/gpu/client/context_provider_command_buffer.cc
@@ -67,8 +67,6 @@ ContextProviderCommandBuffer::~ContextProviderCommandBuffer() {
   // Destroy references to the context3d_ before leaking it.
   if (context3d_->GetCommandBufferProxy()) {
     context3d_->GetCommandBufferProxy()->SetLock(nullptr);
-    context3d_->GetCommandBufferProxy()->SetMemoryAllocationChangedCallback(
-        CommandBufferProxyImpl::MemoryAllocationChangedCallback());
   }
   lost_context_callback_proxy_.reset();
 }
@@ -232,19 +230,4 @@ void ContextProviderCommandBuffer::SetLostContextCallback(
   lost_context_callback_ = lost_context_callback;
 }
 
-void ContextProviderCommandBuffer::SetMemoryPolicyChangedCallback(
-    const MemoryPolicyChangedCallback& memory_policy_changed_callback) {
-  DCHECK(context_thread_checker_.CalledOnValidThread());
-  DCHECK(memory_policy_changed_callback_.is_null() ||
-         memory_policy_changed_callback.is_null());
-  memory_policy_changed_callback_ = memory_policy_changed_callback;
-
-  if (!memory_policy_changed_callback_.is_null()) {
-    DCHECK(context3d_->GetCommandBufferProxy());
-    context3d_->GetCommandBufferProxy()->SetMemoryAllocationChangedCallback(
-        base::Bind(&ContextProviderCommandBuffer::OnMemoryAllocationChanged,
-                   base::Unretained(this)));
-  }
-}
-
 }  // namespace content