Send memory management policies to the tile manager

cc/resource_pool.cc

Index: cc/resource_pool.cc
diff --git a/cc/resource_pool.cc b/cc/resource_pool.cc
index d82f62f3abd0b58a7358b17f34c5971338810145..7cff6ba4e68d9fd19e7be366b6360bccd2efb9f8 100644
--- a/cc/resource_pool.cc
+++ b/cc/resource_pool.cc
@@ -34,7 +34,12 @@ ResourcePool::ResourcePool(ResourceProvider* resource_provider)
 }
 
 ResourcePool::~ResourcePool() {
-  SetMaxMemoryUsageBytes(0);
+  while (!resources_.empty()) {
+    Resource* resource = resources_.front();
+    resources_.pop_front();
+    memory_usage_bytes_ -= resource->bytes();
+    delete resource;
+  }
 }
 
 scoped_ptr<ResourcePool::Resource> ResourcePool::AcquireResource(
@@ -69,17 +74,4 @@ void ResourcePool::ReleaseResource(
   resources_.push_back(resource.release());
 }
 
-void ResourcePool::SetMaxMemoryUsageBytes(size_t max_memory_usage_bytes) {
-  max_memory_usage_bytes_ = max_memory_usage_bytes;
-
-  while (!resources_.empty()) {
-    if (memory_usage_bytes_ <= max_memory_usage_bytes_)
-      break;
-    Resource* resource = resources_.front();
-    resources_.pop_front();
-    memory_usage_bytes_ -= resource->bytes();
-    delete resource;
-  }
-}
-
 }  // namespace cc