Expose MemoryCoordinator's global budget information.

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 cee8d5a76054309f54ad86056a766a15d5262495..ff75ee8c31ba474f746a9797da2de50ae3026a4d 100644
--- a/content/child/memory/child_memory_coordinator_impl.h
+++ b/content/child/memory/child_memory_coordinator_impl.h
@@ -37,6 +37,21 @@ class CONTENT_EXPORT ChildMemoryCoordinatorImpl
 
   // mojom::ChildMemoryCoordinator implementations:
   void OnStateChange(mojom::MemoryState state) override;
+  void SetRemainingGlobalBudget(int64_t remaining_global_budget_mb) override;
+
+  // Returns the current memory state of this process.
+  mojom::MemoryState GetCurrentMemoryState() const {
+    return state_;
+  }
+
+  // Returns the remaining global budget usable in aggregate by all Chrome
+  // processes. This indicates how many MB of memory are remaining for Chrome
+  // processes to use before the memory coordinator will take efforts to reclaim
+  // memory. A negative amount indicates that the coordinator is actively trying
+  // to reclaim that much memory.
+  int64_t GetRemainingGlobalBudget() const {
+    return remaining_global_budget_mb_;
+  }
 
  protected:
   ChildMemoryCoordinatorDelegate* delegate() { return delegate_; }
@@ -48,6 +63,9 @@ class CONTENT_EXPORT ChildMemoryCoordinatorImpl
   mojom::MemoryCoordinatorHandlePtr parent_;
   ChildMemoryCoordinatorDelegate* delegate_;
 
+  mojom::MemoryState state_;
+  int64_t remaining_global_budget_mb_;
+
   DISALLOW_COPY_AND_ASSIGN(ChildMemoryCoordinatorImpl);
 };