Remove commandline flag "--enable-targeted-style-recalc".

content/public/common/content_switches.cc

Index: content/public/common/content_switches.cc
diff --git a/content/public/common/content_switches.cc b/content/public/common/content_switches.cc
index a73806ba58b42654454ae8f02498e31585557961..0fdcfe2f59f8b294b287767fec4c6ebcd49f1db1 100644
--- a/content/public/common/content_switches.cc
+++ b/content/public/common/content_switches.cc
@@ -399,10 +399,6 @@ const char kEnableRegionBasedColumns[] =
 const char kEnableRendererMojoChannel[] =
     "enable-renderer-mojo-channel";
 
-// Enables targeted style recalculation optimizations.
-const char kEnableTargetedStyleRecalc[] =
-    "enable-targeted-style-recalc";
-
 // Cause the OS X sandbox write to syslog every time an access to a resource
 // is denied by the sandbox.
 const char kEnableSandboxLogging[]          = "enable-sandbox-logging";