Adding command line flag for enabling accelerated compositing.

This CL cannot be checked in until the patch for:
https://bugs.webkit.org/show_bug.cgi?id=39917
has landed.
BUG=45373
Review URL: http://codereview.chromium.org/2330004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@48754 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 5 insertions, 0 deletions

diff --git a/webkit/glue/webpreferences.cc b/webkit/glue/webpreferences.cc
index 9a9207c2..7fd6a39 100755
--- a/webkit/glue/webpreferences.cc
+++ b/webkit/glue/webpreferences.cc
@@ -93,6 +93,9 @@ void WebPreferences::Apply(WebView* web_view) const {
   // on command line.
   settings->setShowDebugBorders(show_composited_layer_borders);
 
+  // Enable gpu-accelerated compositing if requested on the command line.
+  settings->setAcceleratedCompositingEnabled(accelerated_compositing_enabled);
+
   for (WebInspectorPreferences::const_iterator it = inspector_settings.begin();
        it != inspector_settings.end(); ++it)
     web_view->setInspectorSetting(WebString::fromUTF8(it->first),
diff --git a/webkit/glue/webpreferences.h b/webkit/glue/webpreferences.h
index ef4ec2b..09e9222 100755
--- a/webkit/glue/webpreferences.h
+++ b/webkit/glue/webpreferences.h
@@ -63,6 +63,7 @@ struct WebPreferences {
   bool allow_file_access_from_file_urls;
   bool experimental_webgl_enabled;
   bool show_composited_layer_borders;
+  bool accelerated_compositing_enabled;
   bool enable_html5_parser;
 
   // We try to keep the default values the same as the default values in
@@ -107,6 +108,7 @@ struct WebPreferences {
         allow_file_access_from_file_urls(false),
         experimental_webgl_enabled(false),
         show_composited_layer_borders(false),
+        accelerated_compositing_enabled(false),
         enable_html5_parser(false) {
   }