diff --git a/ipc/chromium/src/base/histogram.cc b/ipc/chromium/src/base/histogram.cc
index 999ac4304de..f0794475e8d 100644
--- a/ipc/chromium/src/base/histogram.cc
+++ b/ipc/chromium/src/base/histogram.cc
@@ -973,6 +973,14 @@ BooleanHistogram::BooleanHistogram(const std::string& name)
     : LinearHistogram(name, 1, 2, 3) {
 }
 
+void
+BooleanHistogram::Accumulate(Sample value, Count count, size_t index)
+{
+  // Callers will have computed index based on the non-booleanified value.
+  // So we need to adjust the index manually.
+  LinearHistogram::Accumulate(!!value, count, value ? 1 : 0);
+}
+
 //------------------------------------------------------------------------------
 // FlagHistogram:
 //------------------------------------------------------------------------------
diff --git a/ipc/chromium/src/base/histogram.h b/ipc/chromium/src/base/histogram.h
index 7bea51d20a8..0bebbdcae0b 100644
--- a/ipc/chromium/src/base/histogram.h
+++ b/ipc/chromium/src/base/histogram.h
@@ -672,6 +672,8 @@ class BooleanHistogram : public LinearHistogram {
 
   virtual void AddBoolean(bool value);
 
+  virtual void Accumulate(Sample value, Count count, size_t index);
+
  protected:
   explicit BooleanHistogram(const std::string& name);