Expose MemoryCoordinator's global budget information.

base/memory/memory_coordinator_proxy.cc

Index: base/memory/memory_coordinator_proxy.cc
diff --git a/base/memory/memory_coordinator_proxy.cc b/base/memory/memory_coordinator_proxy.cc
index 24b6d66655e0e0d1cdaf59f89b7c2f2cb0c7458f..4b70472ff9a8fd5f3015ecb7a8cc4dc49d3076c2 100644
--- a/base/memory/memory_coordinator_proxy.cc
+++ b/base/memory/memory_coordinator_proxy.cc
@@ -3,6 +3,7 @@
 // found in the LICENSE file.
 
 #include "base/memory/memory_coordinator_proxy.h"
+#include "base/process/process_metrics.h"
 
 namespace base {
 
@@ -28,6 +29,13 @@ void MemoryCoordinatorProxy::SetCurrentMemoryStateForTesting(
   setter_callback_.Run(memory_state);
 }
 
+
+int64_t MemoryCoordinatorProxy::GetRemainingGlobalBudget() const {
+  if (!get_remaining_budget_callback_)
+    return 0;
+  return get_remaining_budget_callback_.Run();
+}
+
 void MemoryCoordinatorProxy::SetGetCurrentMemoryStateCallback(
     GetCurrentMemoryStateCallback callback) {
   getter_callback_ = callback;
@@ -38,4 +46,9 @@ void MemoryCoordinatorProxy::SetSetCurrentMemoryStateForTestingCallback(
   setter_callback_ = callback;
 }
 
+void MemoryCoordinatorProxy::SetGetRemainingGlobalBudgetCallback(
+    GetRemainingGlobalBudgetCallback get_remaining_budget_callback) {
+  get_remaining_budget_callback_ = get_remaining_budget_callback;
+}
+
 }  // namespace base