Remove MemoryCondition::WARNING

content/browser/memory/memory_coordinator_impl.h

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_BROWSER_MEMORY_MEMORY_COORDINATOR_IMPL_H_
 #define CONTENT_BROWSER_MEMORY_MEMORY_COORDINATOR_IMPL_H_
 
 #include "base/callback.h"
 #include "base/cancelable_callback.h"
 #include "base/memory/memory_coordinator_client.h"
@@ skipping 20 matching lines @@
 class MemoryMonitor;
 class RenderProcessHost;
 
 using MemoryState = base::MemoryState;
 
 // MemoryCondition is an internal state of memory coordinator which is used for
 // various things; calculating memory state for processes, requesting processes
 // to purge memory, and scheduling tab discarding.
 enum class MemoryCondition : int {
   NORMAL = 0,
-  WARNING = 1,
-  CRITICAL = 2,
+  CRITICAL = 1,
 };
 
 // MemoryCoordinatorImpl is an implementation of MemoryCoordinator.
 class CONTENT_EXPORT MemoryCoordinatorImpl : public base::MemoryCoordinator,
                                              public MemoryCoordinator,
                                              public NotificationObserver {
  public:
   static MemoryCoordinatorImpl* GetInstance();
 
   // A policy determines what actions (e.g. purging memory from a process)
   // MemoryCoordinator takes on various events.
   class Policy {
    public:
     virtual ~Policy() {}
 
-    // Called periodically while the memory condition is WARNING.
-    virtual void OnWarningCondition() {}
     // Called periodically while the memory condition is CRITICAL.
     virtual void OnCriticalCondition() {}
     // Called when the current MemoryCondition has changed.
     virtual void OnConditionChanged(MemoryCondition prev,
                                     MemoryCondition next) {}
     // Called when the visibility of a child process has changed.
     virtual void OnChildVisibilityChanged(int render_process_id,
                                           bool is_visible) {}
   };
 
@@ skipping 179 matching lines @@
   ChildInfoMap children_;
 
   SEQUENCE_CHECKER(sequence_checker_);
 
   DISALLOW_COPY_AND_ASSIGN(MemoryCoordinatorImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_MEMORY_MEMORY_COORDINATOR_IMPL_H_