Remove PPAPI Flash in-process from about:flags.

chrome/app/generated_resources.grd

Index: chrome/app/generated_resources.grd
diff --git a/chrome/app/generated_resources.grd b/chrome/app/generated_resources.grd
index 0c127af83626c4d9099a860ec64ee6758836eb77..1a81b17a76fd125367e2750888b0d6fbc692c4f4 100644
--- a/chrome/app/generated_resources.grd
+++ b/chrome/app/generated_resources.grd
@@ -4718,12 +4718,6 @@ Keep your key file in a safe place. You will need it to create new versions of y
       <message name="IDS_FLAGS_TAB_GROUPS_CONTEXT_MENU_DESCRIPTION" desc="Description of the context menu for enabling tab grouping in the context menu lab.">
         Adds items to the tab context menu for grouping tabs.
       </message>
-      <message name="IDS_FLAGS_PPAPI_FLASH_IN_PROCESS_NAME" desc="Title for the flag to run the custom flash in-process">
-        Run PPAPI Flash in the renderer process
-      </message>
-      <message name="IDS_FLAGS_PPAPI_FLASH_IN_PROCESS_DESCRIPTION" desc="Description for the flag to run the custom flash in-process">
-        If the PPAPI version of Flash is in use, run it in each renderer process rather than in a dedicated plugin process.
-      </message>
       <message name="IDS_FLAGS_ENABLE_VPN_NAME" desc="Title for the flag to enable VPN support">
         VPN support
       </message>