Add SetImageData api to chrome.clipboard.

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 2b4c1893ea6f974961797557c45edde4e7ae75ee..58795a767288fc014dab2a5dade183c07111dc3d 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -84904,6 +84904,7 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   <int value="1151" label="SYSTEM_DISPLAY_TOUCHCALIBRATIONRESET"/>
   <int value="1152" label="CERTIFICATEPROVIDER_REQUESTPIN"/>
   <int value="1153" label="CERTIFICATEPROVIDER_STOPPINREQUEST"/>
+  <int value="1154" label="CLIPBOARD_SETIMAGEDATA"/>
 </enum>
 
 <enum name="ExtensionIconState" type="int">
@@ -85327,6 +85328,7 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   <int value="198" label="kResourcesPrivate"/>
   <int value="199" label="kDisplaySource"/>
   <int value="200" label="kClipboard"/>
+  <int value="201" label="kClipboardReadWrite"/>
 </enum>
 
 <enum name="ExtensionServiceVerifyAllSuccess" type="int">