Move base to DEPS

base/metrics/histogram_base.h

Index: base/metrics/histogram_base.h
diff --git a/base/metrics/histogram_base.h b/base/metrics/histogram_base.h
deleted file mode 100644
index 1bc1f6eb6fe78bf4a48576f60e3da694a74da932..0000000000000000000000000000000000000000
--- a/base/metrics/histogram_base.h
+++ /dev/null
@@ -1,194 +0,0 @@
-// Copyright (c) 2012 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 BASE_METRICS_HISTOGRAM_BASE_H_
-#define BASE_METRICS_HISTOGRAM_BASE_H_
-
-#include <stdint.h>
-
-#include <string>
-#include <vector>
-
-#include "base/atomicops.h"
-#include "base/base_export.h"
-#include "base/basictypes.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/strings/string_piece.h"
-#include "base/time/time.h"
-
-namespace base {
-
-class DictionaryValue;
-class HistogramBase;
-class HistogramSamples;
-class ListValue;
-class Pickle;
-class PickleIterator;
-
-////////////////////////////////////////////////////////////////////////////////
-// These enums are used to facilitate deserialization of histograms from other
-// processes into the browser. If you create another class that inherits from
-// HistogramBase, add new histogram types and names below.
-
-enum HistogramType {
-  HISTOGRAM,
-  LINEAR_HISTOGRAM,
-  BOOLEAN_HISTOGRAM,
-  CUSTOM_HISTOGRAM,
-  SPARSE_HISTOGRAM,
-};
-
-std::string HistogramTypeToString(HistogramType type);
-
-// Create or find existing histogram that matches the pickled info.
-// Returns NULL if the pickled data has problems.
-BASE_EXPORT_PRIVATE HistogramBase* DeserializeHistogramInfo(
-    base::PickleIterator* iter);
-
-////////////////////////////////////////////////////////////////////////////////
-
-class BASE_EXPORT HistogramBase {
- public:
-  typedef int32_t Sample;                // Used for samples.
-  typedef subtle::Atomic32 AtomicCount;  // Used to count samples.
-  typedef int32_t Count;  // Used to manipulate counts in temporaries.
-
-  static const Sample kSampleType_MAX;  // INT_MAX
-
-  enum Flags {
-    kNoFlags = 0,
-
-    // Histogram should be UMA uploaded.
-    kUmaTargetedHistogramFlag = 0x1,
-
-    // Indicates that this is a stability histogram. This flag exists to specify
-    // which histograms should be included in the initial stability log. Please
-    // refer to |MetricsService::PrepareInitialStabilityLog|.
-    kUmaStabilityHistogramFlag = kUmaTargetedHistogramFlag | 0x2,
-
-    // Indicates that the histogram was pickled to be sent across an IPC
-    // Channel. If we observe this flag on a histogram being aggregated into
-    // after IPC, then we are running in a single process mode, and the
-    // aggregation should not take place (as we would be aggregating back into
-    // the source histogram!).
-    kIPCSerializationSourceFlag = 0x10,
-
-    // Indicates that a callback exists for when a new sample is recorded on
-    // this histogram. We store this as a flag with the histogram since
-    // histograms can be in performance critical code, and this allows us
-    // to shortcut looking up the callback if it doesn't exist.
-    kCallbackExists = 0x20,
-
-    // Only for Histogram and its sub classes: fancy bucket-naming support.
-    kHexRangePrintingFlag = 0x8000,
-  };
-
-  // Histogram data inconsistency types.
-  enum Inconsistency {
-    NO_INCONSISTENCIES = 0x0,
-    RANGE_CHECKSUM_ERROR = 0x1,
-    BUCKET_ORDER_ERROR = 0x2,
-    COUNT_HIGH_ERROR = 0x4,
-    COUNT_LOW_ERROR = 0x8,
-
-    NEVER_EXCEEDED_VALUE = 0x10
-  };
-
-  explicit HistogramBase(const std::string& name);
-  virtual ~HistogramBase();
-
-  const std::string& histogram_name() const { return histogram_name_; }
-
-  // Comapres |name| to the histogram name and triggers a DCHECK if they do not
-  // match. This is a helper function used by histogram macros, which results in
-  // in more compact machine code being generated by the macros.
-  void CheckName(const StringPiece& name) const;
-
-  // Operations with Flags enum.
-  int32_t flags() const { return flags_; }
-  void SetFlags(int32_t flags);
-  void ClearFlags(int32_t flags);
-
-  virtual HistogramType GetHistogramType() const = 0;
-
-  // Whether the histogram has construction arguments as parameters specified.
-  // For histograms that don't have the concept of minimum, maximum or
-  // bucket_count, this function always returns false.
-  virtual bool HasConstructionArguments(Sample expected_minimum,
-                                        Sample expected_maximum,
-                                        size_t expected_bucket_count) const = 0;
-
-  virtual void Add(Sample value) = 0;
-
-  // 2 convenient functions that call Add(Sample).
-  void AddTime(const TimeDelta& time);
-  void AddBoolean(bool value);
-
-  virtual void AddSamples(const HistogramSamples& samples) = 0;
-  virtual bool AddSamplesFromPickle(base::PickleIterator* iter) = 0;
-
-  // Serialize the histogram info into |pickle|.
-  // Note: This only serializes the construction arguments of the histogram, but
-  // does not serialize the samples.
-  bool SerializeInfo(base::Pickle* pickle) const;
-
-  // Try to find out data corruption from histogram and the samples.
-  // The returned value is a combination of Inconsistency enum.
-  virtual int FindCorruption(const HistogramSamples& samples) const;
-
-  // Snapshot the current complete set of sample data.
-  // Override with atomic/locked snapshot if needed.
-  virtual scoped_ptr<HistogramSamples> SnapshotSamples() const = 0;
-
-  // The following methods provide graphical histogram displays.
-  virtual void WriteHTMLGraph(std::string* output) const = 0;
-  virtual void WriteAscii(std::string* output) const = 0;
-
-  // Produce a JSON representation of the histogram. This is implemented with
-  // the help of GetParameters and GetCountAndBucketData; overwrite them to
-  // customize the output.
-  void WriteJSON(std::string* output) const;
-
- protected:
-  // Subclasses should implement this function to make SerializeInfo work.
-  virtual bool SerializeInfoImpl(base::Pickle* pickle) const = 0;
-
-  // Writes information about the construction parameters in |params|.
-  virtual void GetParameters(DictionaryValue* params) const = 0;
-
-  // Writes information about the current (non-empty) buckets and their sample
-  // counts to |buckets|, the total sample count to |count| and the total sum
-  // to |sum|.
-  virtual void GetCountAndBucketData(Count* count,
-                                     int64* sum,
-                                     ListValue* buckets) const = 0;
-
-  //// Produce actual graph (set of blank vs non blank char's) for a bucket.
-  void WriteAsciiBucketGraph(double current_size,
-                             double max_size,
-                             std::string* output) const;
-
-  // Return a string description of what goes in a given bucket.
-  const std::string GetSimpleAsciiBucketRange(Sample sample) const;
-
-  // Write textual description of the bucket contents (relative to histogram).
-  // Output is the count in the buckets, as well as the percentage.
-  void WriteAsciiBucketValue(Count current,
-                             double scaled_sum,
-                             std::string* output) const;
-
-  // Retrieves the callback for this histogram, if one exists, and runs it
-  // passing |sample| as the parameter.
-  void FindAndRunCallback(Sample sample) const;
-
- private:
-  const std::string histogram_name_;
-  int32_t flags_;
-
-  DISALLOW_COPY_AND_ASSIGN(HistogramBase);
-};
-
-}  // namespace base
-
-#endif  // BASE_METRICS_HISTOGRAM_BASE_H_