Binding Graphics3D with Instance and OpenGLES2 interface.

webkit/plugins/ppapi/ppb_graphics_3d_impl.cc

Index: webkit/plugins/ppapi/ppb_graphics_3d_impl.cc
===================================================================
--- webkit/plugins/ppapi/ppb_graphics_3d_impl.cc	(revision 93075)
+++ webkit/plugins/ppapi/ppb_graphics_3d_impl.cc	(working copy)
@@ -141,6 +141,12 @@
 
 bool PPB_Graphics3D_Impl::BindToInstance(bool bind) {
   bound_to_instance_ = bind;
+  if (bind && gles2_impl()) {
+    // Resize the backing texture to the size of the instance when it is bound.
+    // TODO(alokp): This should be the responsibility of plugins.
+    const gfx::Size& size = instance()->position().size();
+    gles2_impl()->ResizeCHROMIUM(size.width(), size.height());
+  }
   return true;
 }