Remove RC4 by default.

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 0b227d6feb76bd0b192975f143dfede19ec804b0..baf230fa213f060c49f1dac672df044cdf9da08e 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -56993,7 +56993,7 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   <int value="13" label="Enable Google Cloud Print proxy"/>
   <int value="14" label="Enable Safe Browsing"/>
   <int value="15" label="Enable reporting of usage and crash-related data"/>
-  <int value="16" label="Enable the password manager"/>
+  <int value="16" label="Enable saving passwords to the password manager"/>
   <int value="17" label="Allow users to show passwords in Password Manager"/>
   <int value="18" label="Enable AutoFill"/>
   <int value="19" label="Specify a list of disabled plugins"/>
@@ -57012,7 +57012,8 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   <int value="31" label="GSSAPI library name"/>
   <int value="32" label="Configure extension installation blacklist"/>
   <int value="33" label="Configure extension installation whitelist"/>
-  <int value="34" label="Configure the list of force-installed extensions"/>
+  <int value="34"
+      label="Configure the list of force-installed apps and extensions"/>
   <int value="35" label="Show Home button on toolbar"/>
   <int value="36" label="Disable Developer Tools"/>
   <int value="37" label="Action on startup"/>
@@ -57109,7 +57110,7 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
       label="Enable reporting memory info (JS heap size) to page (deprecated)"/>
   <int value="116" label="Proxy settings"/>
   <int value="117" label="Disable Print Preview (deprecated)"/>
-  <int value="118" label="Disable SSL record splitting"/>
+  <int value="118" label="Disable TLS False Start"/>
   <int value="119" label="Report OS and firmware version"/>
   <int value="120" label="Report device activity times"/>
   <int value="121" label="Report device boot mode"/>
@@ -57335,7 +57336,7 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
       label="Import autofill form data from default browser on first run"/>
   <int value="278" label="Extension management settings"/>
   <int value="279" label="Minimum SSL version enabled"/>
-  <int value="280" label="Minimum SSL version to fallback to"/>
+  <int value="280" label="Minimum TLS version to fallback to"/>
   <int value="281" label="Enable Touch to Search"/>
   <int value="282" label="Force Google SafeSearch"/>
   <int value="283" label="Force YouTube Safety Mode"/>
@@ -57367,12 +57368,16 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   <int value="300" label="Allow proceeding from the SSL warning page"/>
   <int value="301" label="Allows QUIC protocol"/>
   <int value="302" label="Key Permissions"/>
-  <int value="303" label="Welcome page on OS upgrade enabled"/>
+  <int value="303"
+      label="Enable showing the welcome page on the first browser launch
+             following OS upgrade."/>
   <int value="304" label="Use hardware acceleration when available"/>
-  <int value="305" label="Android Negotiate authenticator account type"/>
+  <int value="305" label="Account type for HTTP Negotiate authentication"/>
   <int value="306" label="Send system logs to the management server"/>
-  <int value="307" label="Enable Unified Desktop by Default"/>
-  <int value="308" label="Print Preview default printer selection policy"/>
+  <int value="307"
+      label="Make Unified Desktop available and turn on by default."/>
+  <int value="308" label="Default printer selection rules"/>
+  <int value="309" label="Whether RC4 cipher suites in TLS are enabled"/>
 </enum>
 
 <enum name="EnterprisePolicyInvalidations" type="int">