Add a switch to invert web contents (non-accel only).

content/browser/renderer_host/render_view_host.cc

Index: content/browser/renderer_host/render_view_host.cc
diff --git a/content/browser/renderer_host/render_view_host.cc b/content/browser/renderer_host/render_view_host.cc
index 24e09f55cf511df9b1d076acc4b5ed677e055b07..6d610b00b725ff084f5375525488ad7e36bee9d6 100644
--- a/content/browser/renderer_host/render_view_host.cc
+++ b/content/browser/renderer_host/render_view_host.cc
@@ -45,6 +45,7 @@
 #include "content/public/browser/user_metrics.h"
 #include "content/public/common/bindings_policy.h"
 #include "content/public/common/content_constants.h"
+#include "content/public/common/content_switches.h"
 #include "content/public/common/result_codes.h"
 #include "content/public/common/url_constants.h"
 #include "net/base/net_util.h"
@@ -209,6 +210,10 @@ bool RenderViewHost::CreateRenderView(const string16& frame_name,
   // Let our delegate know that we created a RenderView.
   delegate_->RenderViewCreated(this);
 
+  // Invert the color scheme if a flag was set.
+  if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kInvertWebContent))
+    Send(new ViewMsg_InvertWebContent(routing_id(), true));
+
   FOR_EACH_OBSERVER(
       content::RenderViewHostObserver, observers_, RenderViewHostInitialized());