Add gpu::MailboxHolder to hold state for a gpu::Mailbox

content/renderer/pepper/pepper_plugin_instance_impl.cc

Index: content/renderer/pepper/pepper_plugin_instance_impl.cc
diff --git a/content/renderer/pepper/pepper_plugin_instance_impl.cc b/content/renderer/pepper/pepper_plugin_instance_impl.cc
index 3ef54aaabcdfd0d8c951af4f556c9a43c04edd38..b86efc4e64119614b3d3456dc13e9a20fc433966 100644
--- a/content/renderer/pepper/pepper_plugin_instance_impl.cc
+++ b/content/renderer/pepper/pepper_plugin_instance_impl.cc
@@ -109,6 +109,7 @@
 #include "third_party/WebKit/public/web/WebSecurityOrigin.h"
 #include "third_party/WebKit/public/web/WebUserGestureIndicator.h"
 #include "third_party/WebKit/public/web/WebView.h"
+#include "third_party/khronos/GLES2/gl2.h"
 #include "third_party/skia/include/core/SkCanvas.h"
 #include "third_party/skia/include/core/SkRect.h"
 #include "ui/gfx/image/image_skia.h"
@@ -1869,7 +1870,7 @@ bool PepperPluginInstanceImpl::PrintPDFOutput(PP_Resource print_output,
 #endif
 }
 
-static void IgnoreCallback(unsigned, bool) {}
+static void IgnoreCallback(uint32, bool) {}
 
 void PepperPluginInstanceImpl::UpdateLayer() {
   if (!container_)
@@ -1907,7 +1908,7 @@ void PepperPluginInstanceImpl::UpdateLayer() {
       texture_layer_ = cc::TextureLayer::CreateForMailbox(NULL);
       opaque = bound_graphics_3d_->IsOpaque();
       texture_layer_->SetTextureMailbox(
-          cc::TextureMailbox(mailbox, 0),
+          cc::TextureMailbox(mailbox, GL_TEXTURE_2D, 0),
           cc::SingleReleaseCallback::Create(base::Bind(&IgnoreCallback)));
       plugin_layer = texture_layer_;
     } else {