Add UMAs for numerical approximation of table-based transfer functions.

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 86869a435ce1fb5ee9a688b389ca56f5a3779b27..e19b580e6aaf5ef1e7b168ff3a3d73bdd2841e64 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -4409,6 +4409,14 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   <summary>Gamma properties of destination color space.</summary>
 </histogram>
 
+<histogram name="Blink.ColorSpace.Destination.FitError">
+  <owner>ccameron@chromium.org</owner>
+  <summary>
+    The L-infinity error (in 8-bit values) of the numerical approximation of
+    table-based ICC profile transfer functions.
+  </summary>
+</histogram>
+
 <histogram name="Blink.ColorSpace.Destination.Matrix"
     enum="ColorSpaceMatrixResult">
   <owner>ccameron@chromium.org</owner>
@@ -4418,6 +4426,15 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   </summary>
 </histogram>
 
+<histogram name="Blink.ColorSpace.Destination.NonlinearFitConverged"
+    units="ColorSpaceNonlinearFitConverged">
+  <owner>ccameron@chromium.org</owner>
+  <summary>
+    Whether or not the nonlinear least squares fit of the table-based ICC
+    profile transfer function converged.
+  </summary>
+</histogram>
+
 <histogram name="Blink.ColorSpace.Destination.Numerical"
     enum="ColorSpaceNumericalResult">
   <owner>ccameron@chromium.org</owner>
@@ -4427,6 +4444,34 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   </summary>
 </histogram>
 
+<histogram name="Blink.ColorSpace.Destination.RawData"
+    units="ColorSpaceRawDataResult">
+  <owner>ccameron@chromium.org</owner>
+  <summary>
+    Whether or not the output color space ICC profile was able to produce raw
+    transfer function tables.
+  </summary>
+</histogram>
+
+<histogram name="Blink.ColorSpace.Destination.TableSize">
+  <owner>ccameron@chromium.org</owner>
+  <summary>The size of table-based ICC profile transfer functions.</summary>
+</histogram>
+
+<histogram name="Blink.ColorSpace.Destination.tMax">
+  <owner>ccameron@chromium.org</owner>
+  <summary>
+    The maximum value of table-based ICC profile transfer functions.
+  </summary>
+</histogram>
+
+<histogram name="Blink.ColorSpace.Destination.tMin">
+  <owner>ccameron@chromium.org</owner>
+  <summary>
+    The minimum value of table-based ICC profile transfer functions.
+  </summary>
+</histogram>
+
 <histogram name="Blink.ColorSpace.Source" enum="Gamma">
   <owner>ccameron@chromium.org</owner>
   <summary>Gamma properties of image color space.</summary>
@@ -82650,11 +82695,21 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   <int value="1" label="Successfully extracted toXYZD50 matrix."/>
 </enum>
 
+<enum name="ColorSpaceNonlinearFitConverged" type="int">
+  <int value="0" label="Nonlinear fit did not converge."/>
+  <int value="1" label="Nonlinear fit converged."/>
+</enum>
+
 <enum name="ColorSpaceNumericalResult" type="int">
   <int value="0" label="Failed to extract analytical transfer function."/>
   <int value="1" label="Successfully extracted analytical transfer function."/>
 </enum>
 
+<enum name="ColorSpaceRawDataResult" type="int">
+  <int value="0" label="Failed to extract raw transfer function tables."/>
+  <int value="1" label="Successfully extracted raw transfer function tables."/>
+</enum>
+
 <enum name="CombinedHttpResponseAndNetErrorCode" type="int">
 <!-- Generated from net/base/net_error_list.h -->