Upstream more layers, decoration title, layer_title_cache

chrome/browser/android/compositor/decoration_title.h

+// Copyright 2014 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.
+
+#ifndef CHROME_BROWSER_ANDROID_COMPOSITOR_DECORATION_TITLE_H_
+#define CHROME_BROWSER_ANDROID_COMPOSITOR_DECORATION_TITLE_H_
+
+#include <jni.h>
+
+#include "base/macros.h"
+#include "base/memory/ref_counted.h"
+#include "cc/resources/ui_resource_client.h"
+#include "third_party/skia/include/core/SkBitmap.h"
+#include "ui/gfx/size.h"
+#include "ui/gfx/transform.h"
+
+namespace cc {
+class Layer;
+class UIResourceLayer;
+}
+
+namespace ui {
+class ResourceManager;
+}
+
+namespace chrome {
+namespace android {
+
+class LayerTitleCache;
+
+class DecorationTitle {

[Nico, 2015/07/22 18:12:14]

(A short class comment describing what this does would've saved me 30s today.
All the other android browser compositor classes I looked at so far have have
excellent class comments, so kudos for that!)

+ public:
+  DecorationTitle(LayerTitleCache* layer_title_cache,
+                  ui::ResourceManager* resource_manager,
+                  int title_resource_id,
+                  int favicon_resource_id,
+                  int spinner_resource_id,
+                  int spinner_resource_id_incognito,
+                  int fade_width,
+                  int favicon_start_padding,
+                  int favicon_end_padding,
+                  bool is_incognito,
+                  bool is_rtl);
+  virtual ~DecorationTitle();
+
+  void SetResourceManager(ui::ResourceManager* resource_manager);
+
+  void Update(int title_resource_id,
+              int favicon_resource_id,
+              int fade_width,
+              int favicon_start_padding,
+              int favicon_end_padding,
+              bool is_incognito,
+              bool is_rtl);
+  void SetUIResourceIds();
+  void SetIsLoading(bool is_loading);
+  void SetSpinnerRotation(float rotation);
+  void setBounds(const gfx::Size& bounds);
+  void setOpacity(float opacity);
+
+  scoped_refptr<cc::Layer> layer();
+  const gfx::Size& size() { return size_; }
+
+ private:
+  scoped_refptr<cc::Layer> layer_;
+  scoped_refptr<cc::UIResourceLayer> layer_opaque_;
+  scoped_refptr<cc::UIResourceLayer> layer_fade_;
+  scoped_refptr<cc::UIResourceLayer> layer_favicon_;
+
+  int title_resource_id_;
+  int favicon_resource_id_;
+  int spinner_resource_id_;
+  int spinner_incognito_resource_id_;
+
+  gfx::Size title_size_;
+  gfx::Size favicon_size_;
+  gfx::Size size_;
+  int fade_width_;
+  float spinner_rotation_;
+  int favicon_start_padding_;
+  int favicon_end_padding_;
+  bool is_incognito_;
+  bool is_rtl_;
+  bool is_loading_;
+  scoped_ptr<gfx::Transform> transform_;
+
+  ui::ResourceManager* resource_manager_;
+
+  LayerTitleCache* layer_title_cache_;
+
+  DISALLOW_COPY_AND_ASSIGN(DecorationTitle);
+};
+
+}  // namespace android
+}  // namespace chrome
+
+#endif  // CHROME_BROWSER_ANDROID_COMPOSITOR_DECORATION_TITLE_H_