Adds experimental flag --enable-experimental-ime-features.

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 d35b748440551e69e2aa33f4ce0314fe28d72170..93a74fe2f35e62d5a89baad65a5a84c7d4703941 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -43189,6 +43189,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.
   <int value="905" label="BOOKMARKMANAGERPRIVATE_SETVERSION"/>
   <int value="906" label="FILESYSTEMPROVIDER_NOTIFY"/>
   <int value="907" label="USB_GETUSERSELECTEDDEVICES"/>
+  <int value="908" label="INPUTMETHODPRIVATE_GETINPUTMETHODCONFIG"/>
 </enum>
 
 <enum name="ExtensionInstallCause" type="int">
@@ -46531,6 +46532,7 @@ To add a new entry, add it with any value and run test to compute valid value.
   <int value="370486304" label="enable-origin-chip-on-srp"/>
   <int value="401983950" label="enable-spdy4"/>
   <int value="402143634" label="enable-search-button-in-omnibox-always"/>
+  <int value="415154056" label="enable-physical-keyboard-autocorrect"/>
   <int value="423615350" label="enable-tab-audio-muting"/>
   <int value="446316019" label="enable-threaded-compositing"/>
   <int value="451196246" label="disable-impl-side-painting"/>
@@ -46564,6 +46566,7 @@ To add a new entry, add it with any value and run test to compute valid value.
   <int value="887011602" label="enable-spelling-auto-correct"/>
   <int value="909439558" label="disable-device-discovery"/>
   <int value="952558794" label="enable-remote-assistance"/>
+  <int value="980396200" label="enable-new-korean-ime"/>
   <int value="1022992701" label="enable-origin-chip-always"/>
   <int value="1033597574" label="disable-layer-squashing"/>
   <int value="1050321458" label="new-profile-management"/>