Update references to Blink's Platform API headers

cc/trees/damage_tracker.cc

 // Copyright 2011 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/trees/damage_tracker.h"
 
 #include <algorithm>
 
 #include "cc/base/math_util.h"
 #include "cc/layers/heads_up_display_layer_impl.h"
 #include "cc/layers/layer_impl.h"
 #include "cc/layers/render_surface_impl.h"
 #include "cc/trees/layer_tree_host_common.h"
 #include "cc/trees/layer_tree_impl.h"
-#include "third_party/WebKit/Source/Platform/chromium/public/WebFilterOperations.h"
+#include "third_party/WebKit/public/platform/WebFilterOperations.h"
 
 namespace cc {
 
 scoped_ptr<DamageTracker> DamageTracker::Create() {
   return make_scoped_ptr(new DamageTracker());
 }
 
 DamageTracker::DamageTracker()
     : current_rect_history_(new RectMap),
       next_rect_history_(new RectMap) {}
@@ skipping 365 matching lines @@
   // one in them. This means we need to redraw any pixels in the surface being
   // used for the blur in this layer this frame.
   if (layer->background_filters().hasFilterThatMovesPixels()) {
     ExpandDamageRectInsideRectWithFilters(target_damage_rect,
                                           surface_rect_in_target_space,
                                           layer->background_filters());
   }
 }
 
 }  // namespace cc