Remove parts of //cc we aren't using

cc/resources/tile_draw_info.cc

-// Copyright 2013 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/resources/tile_draw_info.h"
-
-#include "cc/base/math_util.h"
-
-namespace cc {
-
-TileDrawInfo::TileDrawInfo()
-    : mode_(RESOURCE_MODE), solid_color_(SK_ColorWHITE) {
-}
-
-TileDrawInfo::~TileDrawInfo() {
-  DCHECK(!resource_);
-}
-
-bool TileDrawInfo::IsReadyToDraw() const {
-  switch (mode_) {
-    case RESOURCE_MODE:
-      return !!resource_;
-    case SOLID_COLOR_MODE:
-    case OOM_MODE:
-      return true;
-  }
-  NOTREACHED();
-  return false;
-}
-
-void TileDrawInfo::AsValueInto(base::trace_event::TracedValue* state) const {
-  state->SetBoolean("is_solid_color", mode_ == SOLID_COLOR_MODE);
-  state->SetBoolean("is_transparent",
-                    mode_ == SOLID_COLOR_MODE && !SkColorGetA(solid_color_));
-}
-
-}  // namespace cc