tools/metrics/histograms/histograms.xml

Index: tools/metrics/histograms/histograms.xml
diff --git a/tools/metrics/histograms/histograms.xml b/tools/metrics/histograms/histograms.xml
index 4540b3842452bb83908eb0bc17e1968bd9be9f3d..4ecc603a8fbad38f241feef3c6585a9d9664ed11 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -49945,11 +49945,20 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   </summary>
 </histogram>
 
-<histogram name="Storage.Blob.ExceededMemory" enum="Boolean">

[Mark P, 2016/03/16 19:25:50]

Do not delete old histograms.  Instead, mark them as obsolete.

[dmurph, 2016/03/30 20:13:26]

Done.

+<histogram name="Storage.Blob.Broken" units="BooleanBroken">
   <owner>dmurph@chromium.org</owner>
   <summary>
-    True if a created blob exceeded the internal in-memory storage memory limit
-    for blobs.
+    If a newly constructed blob is broken. See Storage.Blob.BrokenReason for a
+    the broken reasons.
+  </summary>
+</histogram>
+
+<histogram name="Storage.Blob.BrokenReason" units="BlobBrokenReason">
+  <owner>dmurph@chromium.org</owner>
+  <summary>
+    The reason a blob is broken, reported only for broken blobs upon
+    construction. See Storage.Blob.Broken for the breakdown of blobs broken vs
+    unbroken.
   </summary>
 </histogram>
 
@@ -59943,6 +59952,10 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   <int value="111" label="WSH_SEND_FRAME_DURING_BLOB_SEND"/>
   <int value="112" label="RFH_UNEXPECTED_LOAD_START"/>
   <int value="113" label="NMF_INVALID_ARGUMENT"/>
+  <int value="114" label="RFH_INVALID_ORIGIN_ON_COMMIT"/>
+  <int value="115" label="BDH_UUID_REGISTERED"/>
+  <int value="116" label="BDH_CONSTRUCTION_FAILED"/>
+  <int value="117" label="BDH_INVALID_OPERATION"/>
 </enum>
 
 <enum name="BadMessageReasonExtensions" type="int">
@@ -60030,6 +60043,15 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   <int value="5" label="Blacklist disabled."/>
 </enum>
 
+<enum name="BlobBrokenReason" type="int">
+  <int value="0" label="Unknown"/>
+  <int value="1" label="There is not enough memory to store this blob"/>
+  <int value="2" label="File write failed"/>
+  <int value="3" label="Source died in transit"/>
+  <int value="4" label="Blob dereferenced while building"/>
+  <int value="5" label="Referenced blob broken"/>
+</enum>
+
 <enum name="BluetoothAvailability" type="int">
   <int value="0" label="Unexpected error"/>
   <int value="1" label="Not available"/>
@@ -60165,6 +60187,11 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   <int value="1" label="Notification click (within last 5 seconds)"/>
 </enum>
 
+<enum name="BooleanBroken" type="int">
+  <int value="0" label="Not Broken"/>
+  <int value="1" label="Broken"/>
+</enum>
+
 <enum name="BooleanCacheHit" type="int">
   <int value="0" label="Miss"/>
   <int value="1" label="Hit"/>