Add CSS exclusions command-line switch

Connects a command-line switch to the exclusions WebRuntimeFeature methods added for https://bugs.webkit.org/show_bug.cgi?id=91420
Contributed by betravis@adobe.com


Review URL: https://chromiumcodereview.appspot.com/10832183

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@151172 0039d316-1c4b-4281-b951-d872f2087c98

AUTHORS

@@ -195,3 +195,5 @@ Petar Jovanovic <petarj@mips.com>
 Sergio Carlos Morales Angeles <carloschilazo@gmail.com>
 Mihai Maerean <mmaerean@adobe.com>
 Kaustubh Atrawalkar <kaustubh.ra@gmail.com>
+Robert Bear Travis <betravis@adobe.com>
+Robert Bear Travis <bear.travis@gmail.com>

content/browser/renderer_host/render_process_host_impl.cc

@@ -752,6 +752,7 @@ void RenderProcessHostImpl::PropagateBrowserCommandLineToRenderer(
     switches::kDisableWebSockets,
     switches::kDomAutomationController,
     switches::kEnableAccessibilityLogging,
+    switches::kEnableCssExclusions,
     switches::kEnableDCHECK,
     switches::kEnableEncryptedMedia,
     switches::kEnableFixedLayout,

content/public/common/content_switches.cc

@@ -255,6 +255,9 @@ const char kEnableAccessibilityLogging[]    = "enable-accessibility-logging";
 const char kEnableCompositingForFixedPosition[] =
      "enable-fixed-position-compositing";
 
+// Enables CSS3 exclusions
+const char kEnableCssExclusions[]           = "enable-css-exclusions";
+
 // Enables CSS3 regions
 const char kEnableCssRegions[]              = "enable-css-regions";
 

content/public/common/content_switches.h

@@ -93,6 +93,7 @@ CONTENT_EXPORT extern const char kEnableAcceleratedFilters[];
 extern const char kEnableAcceleratedPlugins[];
 extern const char kEnableAccessibilityLogging[];
 CONTENT_EXPORT extern const char kEnableCompositingForFixedPosition[];
+extern const char kEnableCssExclusions[];
 extern const char kEnableCssRegions[];
 extern const char kEnableCssShaders[];
 extern const char kEnableCssVariables[];

content/renderer/render_thread_impl.cc

@@ -618,6 +618,9 @@ void RenderThreadImpl::EnsureWebKitInitialized() {
   WebRuntimeFeatures::enableStyleScoped(
       command_line.HasSwitch(switches::kEnableStyleScoped));
 
+  WebRuntimeFeatures::enableCSSExclusions(
+      command_line.HasSwitch(switches::kEnableCssExclusions));
+
   FOR_EACH_OBSERVER(RenderProcessObserver, observers_, WebKitInitialized());
 
   if (content::GetContentClient()->renderer()->