content: Cleanup GpuMemoryBufferImpl destruction.

content/common/gpu/client/gpu_memory_buffer_impl_surface_texture.cc

Index: content/common/gpu/client/gpu_memory_buffer_impl_surface_texture.cc
diff --git a/content/common/gpu/client/gpu_memory_buffer_impl_surface_texture.cc b/content/common/gpu/client/gpu_memory_buffer_impl_surface_texture.cc
index afb4bf2656abe91dd928aeaffeafb5bfffe3055c..8ee1e25562f1137c45df6e51b3c45b9030360d68 100644
--- a/content/common/gpu/client/gpu_memory_buffer_impl_surface_texture.cc
+++ b/content/common/gpu/client/gpu_memory_buffer_impl_surface_texture.cc
@@ -13,14 +13,18 @@ namespace content {
 
 GpuMemoryBufferImplSurfaceTexture::GpuMemoryBufferImplSurfaceTexture(
     const gfx::Size& size,
-    unsigned internalformat)
-    : GpuMemoryBufferImpl(size, internalformat),
+    unsigned internalformat,
+    const DestructionCallback& callback)
+    : GpuMemoryBufferImpl(size, internalformat), callback_(callback) {
       native_window_(NULL),
       stride_(0u) {}
 
 GpuMemoryBufferImplSurfaceTexture::~GpuMemoryBufferImplSurfaceTexture() {
-  if (native_window_)
-    ANativeWindow_release(native_window_);
+  if (!native_window_)
+    return;
+
+  ANativeWindow_release(native_window_);
+  callback_.Run();
 }
 
 // static