Refactor content/common/gpu into gpu/ipc/service

gpu/ipc/service/ca_layer_partial_damage_tree_mac.mm

Index: gpu/ipc/service/ca_layer_partial_damage_tree_mac.mm
diff --git a/content/common/gpu/ca_layer_partial_damage_tree_mac.mm b/gpu/ipc/service/ca_layer_partial_damage_tree_mac.mm
similarity index 98%
rename from content/common/gpu/ca_layer_partial_damage_tree_mac.mm
rename to gpu/ipc/service/ca_layer_partial_damage_tree_mac.mm
index f42738947a03d1c370368d94a2b71d6e864047fe..25cd39dd6561ac9ef4d6e7252a71b4ade73f55a7 100644
--- a/content/common/gpu/ca_layer_partial_damage_tree_mac.mm
+++ b/gpu/ipc/service/ca_layer_partial_damage_tree_mac.mm
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "content/common/gpu/ca_layer_partial_damage_tree_mac.h"
+#include "gpu/ipc/service/ca_layer_partial_damage_tree_mac.h"
 
 #include "base/command_line.h"
 #include "base/mac/scoped_nsobject.h"
@@ -15,7 +15,7 @@
 -(void)setContentsChanged;
 @end
 
-namespace content {
+namespace gpu {
 namespace {
 
 // When selecting a CALayer to re-use for partial damage, this is the maximum
@@ -284,4 +284,4 @@ void CALayerPartialDamageTree::CommitCALayers(
   UpdateCALayers(superlayer, scale_factor);
 }
 
-}  // namespace content
+}  // namespace gpu