Global GPU memory manager for android webview

content/browser/android/in_process/synchronous_compositor_impl.cc

Index: content/browser/android/in_process/synchronous_compositor_impl.cc
diff --git a/content/browser/android/in_process/synchronous_compositor_impl.cc b/content/browser/android/in_process/synchronous_compositor_impl.cc
index beba92de9ff0921a84cb7cbf980a7b5e635ae87a..2ca0b0f8afbfebc7779054ddbca0e1cbdeb4d9f1 100644
--- a/content/browser/android/in_process/synchronous_compositor_impl.cc
+++ b/content/browser/android/in_process/synchronous_compositor_impl.cc
@@ -140,7 +140,18 @@ void SynchronousCompositorImpl::SetMemoryPolicy(
   DCHECK(CalledOnValidThread());
   DCHECK(output_surface_);
 
-  return output_surface_->SetMemoryPolicy(policy);
+  if (memory_policy_ == policy) {
+    return;
+  }
+  memory_policy_ = policy;
+  output_surface_->SetMemoryPolicy(policy);
+}
+
+const SynchronousCompositorMemoryPolicy&
+    SynchronousCompositorImpl::GetMemoryPolicy() const {
+   DCHECK(CalledOnValidThread());
+
+  return memory_policy_;
 }
 
 void SynchronousCompositorImpl::DidChangeRootLayerScrollOffset() {