Add plumbing to command buffer for CALayer min and mag filter.

gpu/command_buffer/service/gles2_cmd_decoder.cc

Index: gpu/command_buffer/service/gles2_cmd_decoder.cc
diff --git a/gpu/command_buffer/service/gles2_cmd_decoder.cc b/gpu/command_buffer/service/gles2_cmd_decoder.cc
index affed33b0e82a8399fc076eb5e414d73e347da4a..10d31c1c34cb5c5cf79d1fbb9e659fa74fb8a8bd 100644
--- a/gpu/command_buffer/service/gles2_cmd_decoder.cc
+++ b/gpu/command_buffer/service/gles2_cmd_decoder.cc
@@ -9883,10 +9883,10 @@ error::Error GLES2DecoderImpl::HandleScheduleCALayerCHROMIUM(
                            mem[13], mem[17], mem[21], mem[25],
                            mem[14], mem[18], mem[22], mem[26],
                            mem[15], mem[19], mem[23], mem[27]);
-  if (!surface_->ScheduleCALayer(image, contents_rect, c.opacity,
-                                 c.background_color, c.edge_aa_mask,
-                                 bounds_rect, c.is_clipped ? true : false,
-                                 clip_rect, transform, c.sorting_context_id)) {
+  if (!surface_->ScheduleCALayer(
+          image, contents_rect, c.opacity, c.background_color, c.edge_aa_mask,
+          bounds_rect, c.is_clipped ? true : false, clip_rect, transform,
+          c.sorting_context_id, c.filter)) {

[piman, 2016/04/14 03:00:34]

How do we validate c.filter for correct values? Are these GL filters?
Note, for the validation, make sure you read c.filter only once - it's in shared
memory and an untrusted client could race for changing it after you validated
it.

[erikchen, 2016/04/14 17:23:19]

I added validation logic. I updated the documentation to list the valid values.

     LOCAL_SET_GL_ERROR(GL_INVALID_OPERATION, "glScheduleCALayerCHROMIUM",
                        "failed to schedule CALayer");
   }