Add BACKGROUND dump mode to various GPU/CC MemoryDumpProviders

cc/tiles/software_image_decode_controller.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 CC_TILES_SOFTWARE_IMAGE_DECODE_CONTROLLER_H_
 #define CC_TILES_SOFTWARE_IMAGE_DECODE_CONTROLLER_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 180 matching lines @@
   // that we don't go over the limit when pre-decoding.
   class MemoryBudget {
    public:
     explicit MemoryBudget(size_t limit_bytes);
 
     size_t AvailableMemoryBytes() const;
     void AddUsage(size_t usage);
     void SubtractUsage(size_t usage);
     void ResetUsage();
     size_t total_limit_bytes() const { return limit_bytes_; }
+    size_t GetCurrentUsageSafe() const;
 
    private:
-    size_t GetCurrentUsageSafe() const;
-
     size_t limit_bytes_;
     base::CheckedNumeric<size_t> current_usage_bytes_;
   };
 
   using ImageMRUCache = base::HashingMRUCache<ImageKey,
                                               std::unique_ptr<DecodedImage>,
                                               ImageKeyHash>;
 
   // Looks for the key in the cache and returns true if it was found and was
   // successfully locked (or if it was already locked). Note that if this
@@ skipping 75 matching lines @@
   ResourceFormat format_;
   size_t max_items_in_cache_;
 
   // Used to uniquely identify DecodedImages for memory traces.
   base::AtomicSequenceNumber next_tracing_id_;
 };
 
 }  // namespace cc
 
 #endif  // CC_TILES_SOFTWARE_IMAGE_DECODE_CONTROLLER_H_