Browser frame for Aura Android.

chrome/browser/ui/views/frame/browser_frame_android.cc

+// Copyright 2015 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 "chrome/browser/ui/views/frame/browser_frame_android.h"
+
+#include "chrome/browser/ui/views/frame/browser_shutdown.h"
+#include "chrome/browser/ui/views/frame/browser_view.h"
+#include "ui/aura/window.h"
+#include "ui/aura/window_tree_host_platform.h"
+
+// A stripped version of BrowserFrameAsh. May need to add things back later.

[msw, 2015/11/02 21:40:01]

nit: move comment to header?

[mfomitchev, 2015/11/02 23:00:17]

We should probably get rid of this comment altogether. 

[Hadi, 2015/11/03 18:48:47]

Done.

+
+///////////////////////////////////////////////////////////////////////////////
+// BrowserFrameAndroid, public:
+
+// static
+const char BrowserFrameAndroid::kWindowName[] = "BrowserFrameAndroid";
+
+namespace {
+aura::WindowTreeHostPlatform* host = nullptr;

[msw, 2015/11/02 21:40:01]

nit: rename |global_host| or |g_host|; add a comment regarding the reasoning
behind the global pattern.

[Hadi, 2015/11/03 18:48:47]

Added a comment for this and SetHost() after discussing it with mfomitchev. Can
you please double-check?

+}
+
+BrowserFrameAndroid::BrowserFrameAndroid(BrowserFrame* browser_frame,
+                                         BrowserView* browser_view)
+    : views::NativeWidgetAura(browser_frame), browser_view_(browser_view) {
+  GetNativeWindow()->SetName(kWindowName);
+}
+
+// static
+void BrowserFrameAndroid::SetHost(
+    aura::WindowTreeHostPlatform* window_tree_host) {
+  host = window_tree_host;
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// BrowserFrameAndroid, views::NativeWidgetAura overrides:
+
+void BrowserFrameAndroid::OnWindowDestroying(aura::Window* window) {
+  // Destroy any remaining WebContents early on. Doing so may result in
+  // calling back to one of the Views/LayoutManagers or supporting classes of
+  // BrowserView. By destroying here we ensure all said classes are valid.
+  DestroyBrowserWebContents(browser_view_->browser());
+  NativeWidgetAura::OnWindowDestroying(window);
+}
+
+void BrowserFrameAndroid::OnWindowTargetVisibilityChanged(bool visible) {
+  views::NativeWidgetAura::OnWindowTargetVisibilityChanged(visible);

[msw, 2015/11/02 21:40:01]

nit: remove this override if it justs calls the base class impl.

[Hadi, 2015/11/03 18:48:47]

Done.

+}
+
+bool BrowserFrameAndroid::ShouldSaveWindowPlacement() const {

[msw, 2015/11/02 21:40:01]

Match function def order to header decl order and fix override section comments.
(eg. this NativeBrowserFrame impl should follow GetMinimizeButtonOffset)

[Hadi, 2015/11/03 18:48:47]

Done.

+  return false;
+}
+
+void BrowserFrameAndroid::GetWindowPlacement(
+    gfx::Rect* bounds,
+    ui::WindowShowState* show_state) const {}
+
+////////////////////////////////////////////////////////////////////////////////
+// BrowserFrameAndroid, NativeBrowserFrame implementation:
+
+views::Widget::InitParams BrowserFrameAndroid::GetWidgetParams() {
+  DCHECK(host != nullptr);

[msw, 2015/11/02 21:40:01]

nit: DCHECK(host) should suffice

[Hadi, 2015/11/03 18:48:47]

Done.

+
+  views::Widget::InitParams params;
+  params.native_widget = this;
+  params.context = host->window();
+  return params;
+}
+
+bool BrowserFrameAndroid::UseCustomFrame() const {
+  return true;
+}
+
+bool BrowserFrameAndroid::UsesNativeSystemMenu() const {
+  return false;
+}
+
+int BrowserFrameAndroid::GetMinimizeButtonOffset() const {
+  return 0;
+}
+
+BrowserFrameAndroid::~BrowserFrameAndroid() {}