NotForReview: Expose the global memory budget (chromium side)

content/child/memory/child_memory_coordinator_impl.h

Index: content/child/memory/child_memory_coordinator_impl.h
diff --git a/content/child/memory/child_memory_coordinator_impl.h b/content/child/memory/child_memory_coordinator_impl.h
index 96da7294c4b83609522d41a84a0fadad80933341..2f24579ba8f969a8c7b670895e2d9e5d2d0acdb0 100644
--- a/content/child/memory/child_memory_coordinator_impl.h
+++ b/content/child/memory/child_memory_coordinator_impl.h
@@ -12,6 +12,7 @@
 #include "content/common/content_export.h"
 #include "content/common/memory_coordinator.mojom.h"
 #include "mojo/public/cpp/bindings/binding.h"
+#include "mojo/public/cpp/system/buffer.h"
 
 namespace content {
 
@@ -39,6 +40,8 @@ class CONTENT_EXPORT ChildMemoryCoordinatorImpl
 
   // base::MemoryCoordinator implementations:
   base::MemoryState GetCurrentMemoryState() const override;
+  int64_t GetGlobalBudget() override;
+  void SetGlobalBudgetUpdateInterval(uint32_t interval_ms) override;
 
   // mojom::ChildMemoryCoordinator implementations:
   void OnStateChange(mojom::MemoryState state) override;
@@ -50,10 +53,14 @@ class CONTENT_EXPORT ChildMemoryCoordinatorImpl
  private:
   friend class ChildMemoryCoordinatorImplTest;
 
+  void OnGetGlobalBudgetHandle(mojo::ScopedSharedBufferHandle handle);
+
   mojo::Binding<mojom::ChildMemoryCoordinator> binding_;
   base::MemoryState current_state_ = base::MemoryState::NORMAL;
   mojom::MemoryCoordinatorHandlePtr parent_;
   ChildMemoryCoordinatorDelegate* delegate_;
+  mojo::ScopedSharedBufferHandle global_budget_handle_;
+  mojo::ScopedSharedBufferMapping global_budget_mapping_;
 
   DISALLOW_COPY_AND_ASSIGN(ChildMemoryCoordinatorImpl);
 };