Unbind texture from all texture units when deleting it.

gpu/command_buffer/client/gles2_implementation.cc

Index: gpu/command_buffer/client/gles2_implementation.cc
diff --git a/gpu/command_buffer/client/gles2_implementation.cc b/gpu/command_buffer/client/gles2_implementation.cc
index 4f5d42793f1133603864c80afd7e6a6c17ee869a..cfe2701e3caf55e78c590a74ba3c7952a91a7d7f 100644
--- a/gpu/command_buffer/client/gles2_implementation.cc
+++ b/gpu/command_buffer/client/gles2_implementation.cc
@@ -2334,7 +2334,7 @@ void GLES2Implementation::DeleteTexturesHelper(
   }
   for (GLsizei ii = 0; ii < n; ++ii) {
     for (GLint tt = 0; tt < gl_state_.max_combined_texture_image_units; ++tt) {
-      TextureUnit& unit = texture_units_[active_texture_unit_];
+      TextureUnit& unit = texture_units_[tt];
       if (textures[ii] == unit.bound_texture_2d) {
         unit.bound_texture_2d = 0;
       }