cc: Remove all blimp code from cc.

cc/proto/cc_conversions.cc

-// 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.
-
-#include "cc/proto/cc_conversions.h"
-
-#include "cc/base/region.h"
-#include "cc/proto/gfx_conversions.h"
-#include "cc/proto/region.pb.h"
-
-namespace cc {
-
-void RegionToProto(const Region& region, proto::Region* proto) {
-  for (Region::Iterator it(region); it.has_rect(); it.next())
-    RectToProto(it.rect(), proto->add_rects());
-}
-
-Region RegionFromProto(const proto::Region& proto) {
-  Region region;
-  for (int i = 0; i < proto.rects_size(); ++i)
-    region.Union(ProtoToRect(proto.rects(i)));
-  return region;
-}
-
-proto::SolidColorScrollbarLayerProperties::ScrollbarOrientation
-ScrollbarOrientationToProto(const ScrollbarOrientation& orientation) {
-  switch (orientation) {
-    case ScrollbarOrientation::HORIZONTAL:
-      return proto::SolidColorScrollbarLayerProperties::HORIZONTAL;
-    case ScrollbarOrientation::VERTICAL:
-      return proto::SolidColorScrollbarLayerProperties::VERTICAL;
-  }
-  return proto::SolidColorScrollbarLayerProperties::HORIZONTAL;
-}
-
-ScrollbarOrientation ScrollbarOrientationFromProto(
-    const proto::SolidColorScrollbarLayerProperties::ScrollbarOrientation&
-        proto) {
-  switch (proto) {
-    case proto::SolidColorScrollbarLayerProperties::HORIZONTAL:
-      return ScrollbarOrientation::HORIZONTAL;
-    case proto::SolidColorScrollbarLayerProperties::VERTICAL:
-      return ScrollbarOrientation::VERTICAL;
-  }
-  return ScrollbarOrientation::HORIZONTAL;
-}
-
-}  // namespace cc