Use a singleton 1x1 offscreen surface for all TextureImageTransportSurface instances.

content/common/gpu/texture_image_transport_surface.cc

Index: content/common/gpu/texture_image_transport_surface.cc
diff --git a/content/common/gpu/texture_image_transport_surface.cc b/content/common/gpu/texture_image_transport_surface.cc
index c6d28e09004edc0673978e1aedc434bd9f414c49..86f5ebcdd75617071fba129ca971a942354fb8ac 100644
--- a/content/common/gpu/texture_image_transport_surface.cc
+++ b/content/common/gpu/texture_image_transport_surface.cc
@@ -88,7 +88,7 @@ bool TextureImageTransportSurface::Initialize() {
         texture.info, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
   }
 
-  surface_ = gfx::GLSurface::CreateOffscreenGLSurface(false, gfx::Size(1, 1));
+  surface_ = manager->GetDefaultOffscreenSurface();
   if (!surface_.get())
     return false;
 
@@ -108,10 +108,8 @@ void TextureImageTransportSurface::Destroy() {
     ReleaseParentStub();
   }
 
-  if (surface_.get()) {
-    surface_->Destroy();
+  if (surface_.get())
     surface_ = NULL;
-  }
 
   helper_->Destroy();
 }
@@ -348,7 +346,7 @@ void* TextureImageTransportSurface::GetHandle() {
 }
 
 unsigned TextureImageTransportSurface::GetFormat() {
-  return surface_ ? surface_->GetFormat() : 0;
+  return surface_.get() ? surface_->GetFormat() : 0;
 }
 
 void TextureImageTransportSurface::OnSetFrontSurfaceIsProtected(