[cc] Route LayerImpl::layerTreeHostImpl() calls through LayerTreeImpl

cc/layer_tree_debug_state.cc

Index: cc/layer_tree_debug_state.cc
diff --git a/cc/layer_tree_debug_state.cc b/cc/layer_tree_debug_state.cc
new file mode 100644
index 0000000000000000000000000000000000000000..f2e2d668b2b391a0ba77df6d2163ef9d7d58c31a
--- /dev/null
+++ b/cc/layer_tree_debug_state.cc
@@ -0,0 +1,60 @@
+// 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/layer_tree_debug_state.h"
+
+#include "base/logging.h"
+
+namespace cc {
+
+LayerTreeDebugState::LayerTreeDebugState()
+  : showFPSCounter(false)
+  , showPlatformLayerTree(false)
+  , showDebugBorders(false)
+  , showPaintRects(false)
+  , showPropertyChangedRects(false)
+  , showSurfaceDamageRects(false)
+  , showScreenSpaceRects(false)
+  , showReplicaScreenSpaceRects(false)
+  , showOccludingRects(false)
+  , showNonOccludingRects(false) { }
+
+LayerTreeDebugState::~LayerTreeDebugState() {
+}
+
+bool LayerTreeDebugState::showHudInfo() const {
+    return showFPSCounter || showPlatformLayerTree || showHudRects();
+}
+
+bool LayerTreeDebugState::showHudRects() const {
+    return showPaintRects || showPropertyChangedRects || showSurfaceDamageRects || showScreenSpaceRects || showReplicaScreenSpaceRects || showOccludingRects || showNonOccludingRects;
+}
+
+bool LayerTreeDebugState::hudNeedsFont() const {
+    return showFPSCounter || showPlatformLayerTree;
+}
+
+bool LayerTreeDebugState::equal(const LayerTreeDebugState& a, const LayerTreeDebugState& b) {
+    return memcmp(&a, &b, sizeof(LayerTreeDebugState)) == 0;
+}
+
+LayerTreeDebugState LayerTreeDebugState::unite(const LayerTreeDebugState& a, const LayerTreeDebugState& b) {
+    LayerTreeDebugState r(a);
+
+    r.showFPSCounter |= b.showFPSCounter;
+    r.showPlatformLayerTree |= b.showPlatformLayerTree;
+    r.showDebugBorders |= b.showDebugBorders;
+
+    r.showPaintRects |= b.showPaintRects;
+    r.showPropertyChangedRects |= b.showPropertyChangedRects;
+    r.showSurfaceDamageRects |= b.showSurfaceDamageRects;
+    r.showScreenSpaceRects |= b.showScreenSpaceRects;
+    r.showReplicaScreenSpaceRects |= b.showReplicaScreenSpaceRects;
+    r.showOccludingRects |= b.showOccludingRects;
+    r.showNonOccludingRects |= b.showNonOccludingRects;
+
+    return r;
+}
+
+}  // namespace cc