cc: Move filters to the effect tree

cc/proto/property_tree.proto

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 syntax = "proto2";
 
 import "element_id.proto";
 import "rectf.proto";
 import "scroll_offset.proto";
 import "size.proto";
@@ skipping 68 matching lines @@
   optional int64 target_effect_id = 12;
   optional bool applies_local_clip = 6;
   optional bool layer_clipping_uses_only_local_clip = 7;
   optional bool target_is_clipped = 8;
   optional bool layers_are_clipped = 9;
   optional bool layers_are_clipped_when_surfaces_disabled = 10;
   optional bool resets_clip = 11;
 }
 
 // Proto for struct EffectNodeData.
-// NEXT ID: 21
+// NEXT ID: 23
 message EffectNodeData {
   optional float opacity = 1;
   optional float screen_space_opacity = 2;
   optional bool has_render_surface = 3;
   optional bool has_copy_request = 4;
   optional bool hidden_by_backface_visibility = 14;
   optional bool double_sided = 13;
   optional bool is_drawn = 6;
   optional bool subtree_hidden = 15;
+  optional bool has_potential_filter_animation = 21;
   optional bool has_potential_opacity_animation = 7;
+  optional bool is_currently_animating_filter = 22;

[jaydasika, 2016/07/20 21:00:36]

Since filters and background filters are no longer in LayerImpl, I think the
TODO in layer.proto to add support to filters can move to this file ?

[ajuma, 2016/07/21 16:42:18]

Copied the TODO. I think the one in layer.proto is still needed, given that
Blimp is serializing Layers but not property trees (so filters will still need
to be serialized with Layers).

   optional bool is_currently_animating_opacity = 16;
   optional bool effect_changed = 11;
   optional int64 num_copy_requests_in_subtree = 8;
   optional int64 transform_id = 9;
   optional int64 clip_id = 10;
   optional int64 target_id = 12;
   optional int64 mask_layer_id = 17;
   optional int64 replica_layer_id = 18;
   optional int64 replica_mask_layer_id = 19;
   optional Vector2dF surface_contents_scale = 20;
@@ skipping 102 matching lines @@
   optional bool full_tree_damaged = 12;
   optional int64 sequence_number = 6;
   optional bool is_main_thread = 13;
   optional bool is_active = 14;
 
   optional Vector2dF inner_viewport_container_bounds_delta = 8;
   optional Vector2dF outer_viewport_container_bounds_delta = 9;
   optional Vector2dF inner_viewport_scroll_bounds_delta = 10;
   repeated int64 always_use_active_tree_opacity_effect_ids = 15 [packed = true];
 }