Delete the GTK+ port of Chrome.

chrome/browser/ui/gtk/panels/panel_gtk.cc

Index: chrome/browser/ui/gtk/panels/panel_gtk.cc
diff --git a/chrome/browser/ui/gtk/panels/panel_gtk.cc b/chrome/browser/ui/gtk/panels/panel_gtk.cc
deleted file mode 100644
index 274cbb3c4887b4405f1c489d80b3f7d078c9734f..0000000000000000000000000000000000000000
--- a/chrome/browser/ui/gtk/panels/panel_gtk.cc
+++ /dev/null
@@ -1,1255 +0,0 @@
-// Copyright (c) 2012 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/gtk/panels/panel_gtk.h"
-
-#include <gdk/gdk.h>
-#include <gdk/gdkkeysyms.h>
-#include <X11/XF86keysym.h>
-
-#include "base/bind.h"
-#include "base/debug/trace_event.h"
-#include "base/logging.h"
-#include "base/message_loop/message_loop.h"
-#include "base/strings/utf_string_conversions.h"
-#include "chrome/app/chrome_command_ids.h"
-#include "chrome/browser/chrome_notification_types.h"
-#include "chrome/browser/ui/app_modal_dialogs/app_modal_dialog_queue.h"
-#include "chrome/browser/ui/gtk/custom_button.h"
-#include "chrome/browser/ui/gtk/gtk_util.h"
-#include "chrome/browser/ui/gtk/gtk_window_util.h"
-#include "chrome/browser/ui/gtk/panels/panel_drag_gtk.h"
-#include "chrome/browser/ui/gtk/panels/panel_titlebar_gtk.h"
-#include "chrome/browser/ui/panels/display_settings_provider.h"
-#include "chrome/browser/ui/panels/panel.h"
-#include "chrome/browser/ui/panels/panel_constants.h"
-#include "chrome/browser/ui/panels/panel_manager.h"
-#include "chrome/browser/ui/panels/stacked_panel_collection.h"
-#include "chrome/browser/web_applications/web_app.h"
-#include "content/public/browser/native_web_keyboard_event.h"
-#include "content/public/browser/notification_service.h"
-#include "content/public/browser/web_contents.h"
-#include "content/public/browser/web_contents_view.h"
-#include "grit/ui_resources.h"
-#include "ui/base/accelerators/platform_accelerator_gtk.h"
-#include "ui/base/gtk/gtk_expanded_container.h"
-#include "ui/base/gtk/gtk_hig_constants.h"
-#include "ui/base/x/active_window_watcher_x.h"
-#include "ui/base/x/x11_util.h"
-#include "ui/gfx/canvas.h"
-#include "ui/gfx/gtk_compat.h"
-#include "ui/gfx/image/cairo_cached_surface.h"
-#include "ui/gfx/image/image.h"
-
-using content::NativeWebKeyboardEvent;
-using content::WebContents;
-
-namespace {
-
-const char* kPanelWindowKey = "__PANEL_GTK__";
-
-// The number of milliseconds between loading animation frames.
-const int kLoadingAnimationFrameTimeMs = 30;
-
-// The frame border is only visible in restored mode and is hardcoded to 4 px
-// on each side regardless of the system window border size.
-const int kFrameBorderThickness = 4;
-// While resize areas on Windows are normally the same size as the window
-// borders, our top area is shrunk by 1 px to make it easier to move the window
-// around with our thinner top grabbable strip.  (Incidentally, our side and
-// bottom resize areas don't match the frame border thickness either -- they
-// span the whole nonclient area, so there's no "dead zone" for the mouse.)
-const int kTopResizeAdjust = 1;
-// In the window corners, the resize areas don't actually expand bigger, but
-// the 16 px at the end of each edge triggers diagonal resizing.
-const int kResizeAreaCornerSize = 16;
-
-// Colors used to draw frame background under default theme.
-const SkColor kActiveBackgroundDefaultColor = SkColorSetRGB(0x3a, 0x3d, 0x3d);
-const SkColor kInactiveBackgroundDefaultColor = SkColorSetRGB(0x7a, 0x7c, 0x7c);
-const SkColor kAttentionBackgroundDefaultColor =
-    SkColorSetRGB(0x53, 0xa9, 0x3f);
-const SkColor kMinimizeBackgroundDefaultColor = SkColorSetRGB(0xf5, 0xf4, 0xf0);
-const SkColor kMinimizeBorderDefaultColor = SkColorSetRGB(0xc9, 0xc9, 0xc9);
-
-// Set minimium width for window really small.
-const int kMinWindowWidth = 26;
-
-// Table of supported accelerators in Panels.
-const struct AcceleratorMapping {
-  guint keyval;
-  int command_id;
-  GdkModifierType modifier_type;
-} kAcceleratorMap[] = {
-  // Window controls.
-  { GDK_w, IDC_CLOSE_WINDOW, GDK_CONTROL_MASK },
-  { GDK_w, IDC_CLOSE_WINDOW,
-    GdkModifierType(GDK_CONTROL_MASK | GDK_SHIFT_MASK) },
-  { GDK_q, IDC_EXIT, GdkModifierType(GDK_CONTROL_MASK | GDK_SHIFT_MASK) },
-
-  // Zoom level.
-  { GDK_KP_Add, IDC_ZOOM_PLUS, GDK_CONTROL_MASK },
-  { GDK_plus, IDC_ZOOM_PLUS,
-    GdkModifierType(GDK_CONTROL_MASK | GDK_SHIFT_MASK) },
-  { GDK_equal, IDC_ZOOM_PLUS, GDK_CONTROL_MASK },
-  { XF86XK_ZoomIn, IDC_ZOOM_PLUS, GdkModifierType(0) },
-  { GDK_KP_0, IDC_ZOOM_NORMAL, GDK_CONTROL_MASK },
-  { GDK_0, IDC_ZOOM_NORMAL, GDK_CONTROL_MASK },
-  { GDK_KP_Subtract, IDC_ZOOM_MINUS, GDK_CONTROL_MASK },
-  { GDK_minus, IDC_ZOOM_MINUS, GDK_CONTROL_MASK },
-  { GDK_underscore, IDC_ZOOM_MINUS,
-    GdkModifierType(GDK_CONTROL_MASK | GDK_SHIFT_MASK) },
-  { XF86XK_ZoomOut, IDC_ZOOM_MINUS, GdkModifierType(0) },
-
-  // Navigation.
-  { GDK_Escape, IDC_STOP, GdkModifierType(0) },
-  { XF86XK_Stop, IDC_STOP, GdkModifierType(0) },
-  { GDK_r, IDC_RELOAD, GDK_CONTROL_MASK },
-  { GDK_r, IDC_RELOAD_IGNORING_CACHE,
-    GdkModifierType(GDK_CONTROL_MASK|GDK_SHIFT_MASK) },
-  { GDK_F5, IDC_RELOAD, GdkModifierType(0) },
-  { GDK_F5, IDC_RELOAD_IGNORING_CACHE, GDK_CONTROL_MASK },
-  { GDK_F5, IDC_RELOAD_IGNORING_CACHE, GDK_SHIFT_MASK },
-  { XF86XK_Reload, IDC_RELOAD, GdkModifierType(0) },
-  { XF86XK_Refresh, IDC_RELOAD, GdkModifierType(0) },
-
-  // Editing.
-  { GDK_c, IDC_COPY, GDK_CONTROL_MASK },
-  { GDK_x, IDC_CUT, GDK_CONTROL_MASK },
-  { GDK_v, IDC_PASTE, GDK_CONTROL_MASK },
-
-  // Dev tools.
-  { GDK_i, IDC_DEV_TOOLS,
-    GdkModifierType(GDK_CONTROL_MASK | GDK_SHIFT_MASK) },
-  { GDK_j, IDC_DEV_TOOLS_CONSOLE,
-    GdkModifierType(GDK_CONTROL_MASK | GDK_SHIFT_MASK) },
-
-};
-
-// Table of accelerator mappings to command ids.
-typedef std::map<ui::Accelerator, int> AcceleratorMap;
-
-const AcceleratorMap& GetAcceleratorTable() {
-  CR_DEFINE_STATIC_LOCAL(AcceleratorMap, accelerator_table, ());
-  if (accelerator_table.empty()) {
-    for (size_t i = 0; i < arraysize(kAcceleratorMap); ++i) {
-      const AcceleratorMapping& entry = kAcceleratorMap[i];
-      ui::Accelerator accelerator = ui::AcceleratorForGdkKeyCodeAndModifier(
-          entry.keyval, entry.modifier_type);
-      accelerator_table[accelerator] = entry.command_id;
-    }
-  }
-  return accelerator_table;
-}
-
-gfx::Image CreateImageForColor(SkColor color) {
-  gfx::Canvas canvas(gfx::Size(1, 1), 1.0f, true);
-  canvas.DrawColor(color);
-  return gfx::Image(gfx::ImageSkia(canvas.ExtractImageRep()));
-}
-
-const gfx::Image GetActiveBackgroundDefaultImage() {
-  CR_DEFINE_STATIC_LOCAL(gfx::Image, image, ());
-  if (image.IsEmpty())
-    image = CreateImageForColor(kActiveBackgroundDefaultColor);
-  return image;
-}
-
-gfx::Image GetInactiveBackgroundDefaultImage() {
-  CR_DEFINE_STATIC_LOCAL(gfx::Image, image, ());
-  if (image.IsEmpty())
-    image = CreateImageForColor(kInactiveBackgroundDefaultColor);
-  return image;
-}
-
-gfx::Image GetAttentionBackgroundDefaultImage() {
-  CR_DEFINE_STATIC_LOCAL(gfx::Image, image, ());
-  if (image.IsEmpty())
-    image = CreateImageForColor(kAttentionBackgroundDefaultColor);
-  return image;
-}
-
-gfx::Image GetMinimizeBackgroundDefaultImage() {
-  CR_DEFINE_STATIC_LOCAL(gfx::Image, image, ());
-  if (image.IsEmpty())
-    image = CreateImageForColor(kMinimizeBackgroundDefaultColor);
-  return image;
-}
-
-// Used to stash a pointer to the Panel window inside the native
-// Gtk window for retrieval in static callbacks.
-GQuark GetPanelWindowQuarkKey() {
-  static GQuark quark = g_quark_from_static_string(kPanelWindowKey);
-  return quark;
-}
-
-// Size of window frame. Empty until first panel has been allocated
-// and sized. Frame size won't change for other panels so it can be
-// computed once for all panels.
-gfx::Size& GetFrameSize() {
-  CR_DEFINE_STATIC_LOCAL(gfx::Size, frame_size, ());
-  return frame_size;
-}
-
-void SetFrameSize(const gfx::Size& new_size) {
-  gfx::Size& frame_size = GetFrameSize();
-  frame_size.SetSize(new_size.width(), new_size.height());
-}
-
-}  // namespace
-
-// static
-NativePanel* Panel::CreateNativePanel(Panel* panel,
-                                      const gfx::Rect& bounds,
-                                      bool always_on_top) {
-  PanelGtk* panel_gtk = new PanelGtk(panel, bounds, always_on_top);
-  panel_gtk->Init();
-  return panel_gtk;
-}
-
-PanelGtk::PanelGtk(Panel* panel, const gfx::Rect& bounds, bool always_on_top)
-    : panel_(panel),
-      bounds_(bounds),
-      always_on_top_(always_on_top),
-      is_shown_(false),
-      paint_state_(PAINT_AS_INACTIVE),
-      is_drawing_attention_(false),
-      frame_cursor_(NULL),
-      is_active_(!ui::ActiveWindowWatcherX::WMSupportsActivation()),
-      is_minimized_(false),
-      window_(NULL),
-      window_container_(NULL),
-      window_vbox_(NULL),
-      render_area_event_box_(NULL),
-      contents_expanded_(NULL),
-      accel_group_(NULL),
-      corner_style_(panel::ALL_ROUNDED) {
-}
-
-PanelGtk::~PanelGtk() {
-  ui::ActiveWindowWatcherX::RemoveObserver(this);
-}
-
-void PanelGtk::Init() {
-  ui::ActiveWindowWatcherX::AddObserver(this);
-
-  window_ = GTK_WINDOW(gtk_window_new(GTK_WINDOW_TOPLEVEL));
-  g_object_set_qdata(G_OBJECT(window_), GetPanelWindowQuarkKey(), this);
-  gtk_widget_add_events(GTK_WIDGET(window_), GDK_BUTTON_PRESS_MASK |
-                                             GDK_POINTER_MOTION_MASK);
-  gtk_window_set_decorated(window_, false);
-
-  // Disable the resize gripper on Ubuntu.
-  gtk_window_util::DisableResizeGrip(window_);
-
-  // Add this window to its own unique window group to allow for
-  // window-to-parent modality.
-  gtk_window_group_add_window(gtk_window_group_new(), window_);
-  g_object_unref(gtk_window_get_group(window_));
-
-  // Set minimum height for the window.
-  GdkGeometry hints;
-  hints.min_height = panel::kMinimizedPanelHeight;
-  hints.min_width = kMinWindowWidth;
-  gtk_window_set_geometry_hints(
-      window_, GTK_WIDGET(window_), &hints, GDK_HINT_MIN_SIZE);
-
-  // Connect signal handlers to the window.
-  g_signal_connect(window_, "delete-event",
-                   G_CALLBACK(OnMainWindowDeleteEventThunk), this);
-  g_signal_connect(window_, "destroy",
-                   G_CALLBACK(OnMainWindowDestroyThunk), this);
-  g_signal_connect(window_, "configure-event",
-                   G_CALLBACK(OnConfigureThunk), this);
-  g_signal_connect(window_, "window-state-event",
-                   G_CALLBACK(OnWindowStateThunk), this);
-  g_signal_connect(window_, "key-press-event",
-                   G_CALLBACK(OnKeyPressThunk), this);
-  g_signal_connect(window_, "motion-notify-event",
-                   G_CALLBACK(OnMouseMoveEventThunk), this);
-  g_signal_connect(window_, "button-press-event",
-                   G_CALLBACK(OnButtonPressEventThunk), this);
-
-  // This vbox contains the titlebar and the render area, but not
-  // the custom frame border.
-  window_vbox_ = gtk_vbox_new(FALSE, 0);
-  gtk_widget_show(window_vbox_);
-
-  // TODO(jennb): add GlobalMenuBar after refactoring out Browser.
-
-  // The window container draws the custom window frame.
-  window_container_ = gtk_alignment_new(0.0, 0.0, 1.0, 1.0);
-  gtk_widget_set_name(window_container_, "chrome-custom-frame-border");
-  gtk_widget_set_app_paintable(window_container_, TRUE);
-  gtk_widget_set_double_buffered(window_container_, FALSE);
-  gtk_widget_set_redraw_on_allocate(window_container_, TRUE);
-  gtk_alignment_set_padding(GTK_ALIGNMENT(window_container_), 0,
-      kFrameBorderThickness, kFrameBorderThickness, kFrameBorderThickness);
-  g_signal_connect(window_container_, "expose-event",
-                   G_CALLBACK(OnCustomFrameExposeThunk), this);
-  gtk_container_add(GTK_CONTAINER(window_container_), window_vbox_);
-
-  // Build the titlebar.
-  titlebar_.reset(new PanelTitlebarGtk(this));
-  titlebar_->Init();
-  gtk_box_pack_start(GTK_BOX(window_vbox_), titlebar_->widget(), FALSE, FALSE,
-                     0);
-  g_signal_connect(titlebar_->widget(), "button-press-event",
-                   G_CALLBACK(OnTitlebarButtonPressEventThunk), this);
-  g_signal_connect(titlebar_->widget(), "button-release-event",
-                   G_CALLBACK(OnTitlebarButtonReleaseEventThunk), this);
-
-  contents_expanded_ = gtk_expanded_container_new();
-  gtk_widget_show(contents_expanded_);
-
-  render_area_event_box_ = gtk_event_box_new();
-  // Set a white background so during startup the user sees white in the
-  // content area before we get a WebContents in place.
-  gtk_widget_modify_bg(render_area_event_box_, GTK_STATE_NORMAL,
-                       &ui::kGdkWhite);
-  gtk_container_add(GTK_CONTAINER(render_area_event_box_),
-                    contents_expanded_);
-  gtk_widget_show(render_area_event_box_);
-  gtk_box_pack_end(GTK_BOX(window_vbox_), render_area_event_box_,
-                   TRUE, TRUE, 0);
-
-  gtk_container_add(GTK_CONTAINER(window_), window_container_);
-  gtk_widget_show(window_container_);
-
-  ConnectAccelerators();
-  SetPanelAlwaysOnTop(always_on_top_);
-}
-
-void PanelGtk::SetWindowCornerStyle(panel::CornerStyle corner_style) {
-  corner_style_ = corner_style;
-  UpdateWindowShape();
-}
-
-void PanelGtk::MinimizePanelBySystem() {
-  gtk_window_iconify(window_);
-}
-
-bool PanelGtk::IsPanelMinimizedBySystem() const {
-  return is_minimized_;
-}
-
-bool PanelGtk::IsPanelShownOnActiveDesktop() const {
-  // IsWindowVisible checks _NET_WM_DESKTOP.
-  if (!ui::IsWindowVisible(ui::GetX11WindowFromGtkWidget(GTK_WIDGET(window_))))
-    return false;
-
-  // Certain window manager, like Unity, does not update _NET_WM_DESKTOP when a
-  // window is moved to other workspace. However, it treats all workspaces as
-  // concatenated together in one big coordinate space. When the user switches
-  // to another workspace, the window manager will update the origins of all
-  // windows in previous active workspace to move by the size of display
-  // area.
-  gfx::Rect display_area = PanelManager::GetInstance()->
-      display_settings_provider()->GetDisplayAreaMatching(bounds_);
-  int win_x = 0, win_y = 0;
-  gdk_window_get_origin(gtk_widget_get_window(GTK_WIDGET(window_)),
-                                              &win_x, &win_y);
-  return abs(win_x - bounds_.x()) < display_area.width() &&
-         abs(win_y - bounds_.y()) < display_area.height();
-}
-
-void PanelGtk::ShowShadow(bool show) {
-  // Shadow is not supported for GTK panel.
-}
-
-void PanelGtk::UpdateWindowShape() {
-  int width = configure_size_.width();
-  int height = configure_size_.height();
-  if (!width || !height)
-    return;
-
-  GdkRegion* mask;
-  if (corner_style_ & panel::TOP_ROUNDED) {
-    GdkRectangle top_top_rect = { 3, 0, width - 6, 1 };
-    GdkRectangle top_mid_rect = { 1, 1, width - 2, 2 };
-    mask = gdk_region_rectangle(&top_top_rect);
-    gdk_region_union_with_rect(mask, &top_mid_rect);
-  } else {
-    GdkRectangle top_rect = { 0, 0, width, 3 };
-    mask = gdk_region_rectangle(&top_rect);
-  }
-
-  if (corner_style_ & panel::BOTTOM_ROUNDED) {
-    GdkRectangle mid_rect = { 0, 3, width, height - 6 };
-    GdkRectangle bottom_mid_rect = { 1, height - 3, width - 2, 2 };
-    GdkRectangle bottom_bottom_rect = { 3, height - 1, width - 6, 1 };
-    gdk_region_union_with_rect(mask, &mid_rect);
-    gdk_region_union_with_rect(mask, &bottom_mid_rect);
-    gdk_region_union_with_rect(mask, &bottom_bottom_rect);
-  } else {
-    GdkRectangle mid_rect = { 0, 3, width, height - 3 };
-    gdk_region_union_with_rect(mask, &mid_rect);
-  }
-
-  gdk_window_shape_combine_region(
-      gtk_widget_get_window(GTK_WIDGET(window_)), mask, 0, 0);
-  if (mask)
-    gdk_region_destroy(mask);
-}
-
-gboolean PanelGtk::OnConfigure(GtkWidget* widget,
-                               GdkEventConfigure* event) {
-  // When the window moves, we'll get multiple configure-event signals. We can
-  // also get events when the bounds haven't changed, but the window's stacking
-  // has, which we aren't interested in. http://crbug.com/70125
-  gfx::Size new_size(event->width, event->height);
-  if (new_size == configure_size_)
-    return FALSE;
-  configure_size_ = new_size;
-
-  UpdateWindowShape();
-
-  if (!GetFrameSize().IsEmpty())
-    return FALSE;
-
-  // Save the frame size allocated by the system as the
-  // frame size will be affected when we shrink the panel smaller
-  // than the frame (e.g. when the panel is minimized).
-  SetFrameSize(GetNonClientFrameSize());
-  panel_->OnWindowSizeAvailable();
-
-  content::NotificationService::current()->Notify(
-      chrome::NOTIFICATION_PANEL_WINDOW_SIZE_KNOWN,
-      content::Source<Panel>(panel_.get()),
-      content::NotificationService::NoDetails());
-
-  return FALSE;
-}
-
-gboolean PanelGtk::OnWindowState(GtkWidget* widget,
-                                 GdkEventWindowState* event) {
-  is_minimized_ = event->new_window_state & GDK_WINDOW_STATE_ICONIFIED;
-  return FALSE;
-}
-
-void PanelGtk::ConnectAccelerators() {
-  accel_group_ = gtk_accel_group_new();
-  gtk_window_add_accel_group(window_, accel_group_);
-
-  const AcceleratorMap& accelerator_table = GetAcceleratorTable();
-  for (AcceleratorMap::const_iterator iter = accelerator_table.begin();
-       iter != accelerator_table.end(); ++iter) {
-    gtk_accel_group_connect(
-        accel_group_,
-        ui::GetGdkKeyCodeForAccelerator(iter->first),
-        ui::GetGdkModifierForAccelerator(iter->first),
-        GtkAccelFlags(0),
-        g_cclosure_new(G_CALLBACK(OnGtkAccelerator),
-                       GINT_TO_POINTER(iter->second), NULL));
-  }
-}
-
-void PanelGtk::DisconnectAccelerators() {
-  // Disconnecting the keys we connected to our accelerator group frees the
-  // closures allocated in ConnectAccelerators.
-  const AcceleratorMap& accelerator_table = GetAcceleratorTable();
-  for (AcceleratorMap::const_iterator iter = accelerator_table.begin();
-       iter != accelerator_table.end(); ++iter) {
-    gtk_accel_group_disconnect_key(
-        accel_group_,
-        ui::GetGdkKeyCodeForAccelerator(iter->first),
-        ui::GetGdkModifierForAccelerator(iter->first));
-  }
-  gtk_window_remove_accel_group(window_, accel_group_);
-  g_object_unref(accel_group_);
-  accel_group_ = NULL;
-}
-
-// static
-gboolean PanelGtk::OnGtkAccelerator(GtkAccelGroup* accel_group,
-                                    GObject* acceleratable,
-                                    guint keyval,
-                                    GdkModifierType modifier,
-                                    void* user_data) {
-  DCHECK(acceleratable);
-  int command_id = GPOINTER_TO_INT(user_data);
-  PanelGtk* panel_gtk = static_cast<PanelGtk*>(
-      g_object_get_qdata(acceleratable, GetPanelWindowQuarkKey()));
-  return panel_gtk->panel()->ExecuteCommandIfEnabled(command_id);
-}
-
-gboolean PanelGtk::OnKeyPress(GtkWidget* widget, GdkEventKey* event) {
-  // No way to deactivate a window in GTK, so ignore input if window
-  // is supposed to be 'inactive'. See comments in DeactivatePanel().
-  if (!is_active_)
-    return TRUE;
-
-  // Propagate the key event to child widget first, so we don't override
-  // their accelerators.
-  if (!gtk_window_propagate_key_event(GTK_WINDOW(widget), event)) {
-    if (!gtk_window_activate_key(GTK_WINDOW(widget), event)) {
-      gtk_bindings_activate_event(GTK_OBJECT(widget), event);
-    }
-  }
-  return TRUE;
-}
-
-bool PanelGtk::GetWindowEdge(int x, int y, GdkWindowEdge* edge) const {
-  // Only detect the window edge when panels can be resized by the user.
-  // This method is used by the base class to detect when the cursor has
-  // hit the window edge in order to change the cursor to a resize cursor
-  // and to detect when to initiate a resize drag.
-  panel::Resizability resizability = panel_->CanResizeByMouse();
-  if (panel::NOT_RESIZABLE == resizability)
-    return false;
-
-  int width = bounds_.width();
-  int height = bounds_.height();
-  if (x < kFrameBorderThickness) {
-    if (y < kResizeAreaCornerSize - kTopResizeAdjust &&
-        (resizability & panel::RESIZABLE_TOP_LEFT)) {
-      *edge = GDK_WINDOW_EDGE_NORTH_WEST;
-      return true;
-    } else if (y >= height - kResizeAreaCornerSize &&
-              (resizability & panel::RESIZABLE_BOTTOM_LEFT)) {
-      *edge = GDK_WINDOW_EDGE_SOUTH_WEST;
-      return true;
-    }
-  } else if (x >= width - kFrameBorderThickness) {
-    if (y < kResizeAreaCornerSize - kTopResizeAdjust &&
-        (resizability & panel::RESIZABLE_TOP_RIGHT)) {
-      *edge = GDK_WINDOW_EDGE_NORTH_EAST;
-      return true;
-    } else if (y >= height - kResizeAreaCornerSize &&
-              (resizability & panel::RESIZABLE_BOTTOM_RIGHT)) {
-      *edge = GDK_WINDOW_EDGE_SOUTH_EAST;
-      return true;
-    }
-  }
-
-  if (x < kFrameBorderThickness && (resizability & panel::RESIZABLE_LEFT)) {
-    *edge = GDK_WINDOW_EDGE_WEST;
-    return true;
-  } else if (x >= width - kFrameBorderThickness &&
-            (resizability & panel::RESIZABLE_RIGHT)) {
-    *edge = GDK_WINDOW_EDGE_EAST;
-    return true;
-  }
-
-  if (y < kFrameBorderThickness && (resizability & panel::RESIZABLE_TOP)) {
-    *edge = GDK_WINDOW_EDGE_NORTH;
-    return true;
-  } else if (y >= height - kFrameBorderThickness &&
-            (resizability & panel::RESIZABLE_BOTTOM)) {
-    *edge = GDK_WINDOW_EDGE_SOUTH;
-    return true;
-  }
-
-  return false;
-}
-
-gfx::Image PanelGtk::GetFrameBackground() const {
-  switch (paint_state_) {
-    case PAINT_AS_INACTIVE:
-      return GetInactiveBackgroundDefaultImage();
-    case PAINT_AS_ACTIVE:
-      return GetActiveBackgroundDefaultImage();
-    case PAINT_AS_MINIMIZED:
-      return GetMinimizeBackgroundDefaultImage();
-    case PAINT_FOR_ATTENTION:
-      return GetAttentionBackgroundDefaultImage();
-    default:
-      NOTREACHED();
-      return GetInactiveBackgroundDefaultImage();
-  }
-}
-
-gboolean PanelGtk::OnCustomFrameExpose(GtkWidget* widget,
-                                       GdkEventExpose* event) {
-  TRACE_EVENT0("ui::gtk", "PanelGtk::OnCustomFrameExpose");
-  cairo_t* cr = gdk_cairo_create(gtk_widget_get_window(widget));
-  gdk_cairo_rectangle(cr, &event->area);
-  cairo_clip(cr);
-
-  // Update the painting state.
-  int window_height = gdk_window_get_height(gtk_widget_get_window(widget));
-  if (is_drawing_attention_)
-    paint_state_ = PAINT_FOR_ATTENTION;
-  else if (window_height <= panel::kMinimizedPanelHeight)
-    paint_state_ = PAINT_AS_MINIMIZED;
-  else if (is_active_)
-    paint_state_ = PAINT_AS_ACTIVE;
-  else
-    paint_state_ = PAINT_AS_INACTIVE;
-
-  // Draw the background.
-  gfx::CairoCachedSurface* surface = GetFrameBackground().ToCairo();
-  surface->SetSource(cr, widget, 0, 0);
-  cairo_pattern_set_extend(cairo_get_source(cr), CAIRO_EXTEND_REPEAT);
-  cairo_rectangle(cr, event->area.x, event->area.y,
-                  event->area.width, event->area.height);
-  cairo_fill(cr);
-
-  // Draw the border for the minimized panel only.
-  if (paint_state_ == PAINT_AS_MINIMIZED) {
-    cairo_move_to(cr, 0, 3);
-    cairo_line_to(cr, 1, 2);
-    cairo_line_to(cr, 1, 1);
-    cairo_line_to(cr, 2, 1);
-    cairo_line_to(cr, 3, 0);
-    cairo_line_to(cr, event->area.width - 3, 0);
-    cairo_line_to(cr, event->area.width - 2, 1);
-    cairo_line_to(cr, event->area.width - 1, 1);
-    cairo_line_to(cr, event->area.width - 1, 2);
-    cairo_line_to(cr, event->area.width - 1, 3);
-    cairo_line_to(cr, event->area.width - 1, event->area.height - 1);
-    cairo_line_to(cr, 0, event->area.height - 1);
-    cairo_close_path(cr);
-    cairo_set_source_rgb(cr,
-                         SkColorGetR(kMinimizeBorderDefaultColor) / 255.0,
-                         SkColorGetG(kMinimizeBorderDefaultColor) / 255.0,
-                         SkColorGetB(kMinimizeBorderDefaultColor) / 255.0);
-    cairo_set_line_width(cr, 1.0);
-    cairo_stroke(cr);
-  }
-
-  cairo_destroy(cr);
-
-  return FALSE;  // Allow subwidgets to paint.
-}
-
-void PanelGtk::EnsureDragHelperCreated() {
-  if (drag_helper_.get())
-    return;
-
-  drag_helper_.reset(new PanelDragGtk(panel_.get()));
-  gtk_box_pack_end(GTK_BOX(window_vbox_), drag_helper_->widget(),
-                   FALSE, FALSE, 0);
-}
-
-gboolean PanelGtk::OnTitlebarButtonPressEvent(
-    GtkWidget* widget, GdkEventButton* event) {
-  if (event->button != 1)
-    return TRUE;
-  if (event->type != GDK_BUTTON_PRESS)
-    return TRUE;
-
-  // If the panel is in a stack, bring all other panels in the stack to the
-  // top.
-  StackedPanelCollection* stack = panel_->stack();
-  if (stack) {
-    for (StackedPanelCollection::Panels::const_iterator iter =
-             stack->panels().begin();
-         iter != stack->panels().end(); ++iter) {
-      Panel* panel = *iter;
-      GtkWindow* gtk_window = panel->GetNativeWindow();
-      // If a panel is collapsed, we make it not to take focus. For such window,
-      // it cannot be brought to the top by calling gdk_window_raise. To work
-      // around this issue, we make it always-on-top first and then put it back
-      // to normal. Note that this trick has been done for all panels in the
-      // stack, regardless of whether it is collapsed or not.
-      // There is one side-effect to this approach: if the panel being pressed
-      // on is collapsed, clicking on the client area of the last active
-      // window will not raise it above these panels.
-      gtk_window_set_keep_above(gtk_window, true);
-      gtk_window_set_keep_above(gtk_window, false);
-    }
-  } else {
-    gdk_window_raise(gtk_widget_get_window(GTK_WIDGET(window_)));
-  }
-
-  EnsureDragHelperCreated();
-  drag_helper_->InitialTitlebarMousePress(event, titlebar_->widget());
-  return TRUE;
-}
-
-gboolean PanelGtk::OnTitlebarButtonReleaseEvent(
-    GtkWidget* widget, GdkEventButton* event) {
-  if (event->button != 1)
-    return TRUE;
-
-  panel_->OnTitlebarClicked((event->state & GDK_CONTROL_MASK) ?
-                            panel::APPLY_TO_ALL : panel::NO_MODIFIER);
-  return TRUE;
-}
-
-gboolean PanelGtk::OnMouseMoveEvent(GtkWidget* widget,
-                                    GdkEventMotion* event) {
-  // This method is used to update the mouse cursor when over the edge of the
-  // custom frame.  If we're over some other widget, do nothing.
-  if (event->window != gtk_widget_get_window(widget)) {
-    // Reset the cursor.
-    if (frame_cursor_) {
-      frame_cursor_ = NULL;
-      gdk_window_set_cursor(gtk_widget_get_window(GTK_WIDGET(window_)), NULL);
-    }
-    return FALSE;
-  }
-
-  // Update the cursor if we're on the custom frame border.
-  GdkWindowEdge edge;
-  bool has_hit_edge = GetWindowEdge(static_cast<int>(event->x),
-                                    static_cast<int>(event->y), &edge);
-  GdkCursorType new_cursor = has_hit_edge ?
-      gtk_window_util::GdkWindowEdgeToGdkCursorType(edge) : GDK_LAST_CURSOR;
-  GdkCursorType last_cursor =
-      frame_cursor_ ? frame_cursor_->type : GDK_LAST_CURSOR;
-
-  if (last_cursor != new_cursor) {
-    frame_cursor_ = has_hit_edge ? gfx::GetCursor(new_cursor) : NULL;
-    gdk_window_set_cursor(gtk_widget_get_window(GTK_WIDGET(window_)),
-                          frame_cursor_);
-  }
-  return FALSE;
-}
-
-gboolean PanelGtk::OnButtonPressEvent(GtkWidget* widget,
-                                      GdkEventButton* event) {
-  if (event->button != 1 || event->type != GDK_BUTTON_PRESS)
-    return FALSE;
-
-  // No way to deactivate a window in GTK, so we pretended it is deactivated.
-  // See comments in DeactivatePanel().
-  // Mouse click anywhere in window should re-activate window so do it now.
-  if (!is_active_)
-    panel_->Activate();
-
-  // Make the button press coordinate relative to the panel window.
-  int win_x, win_y;
-  GdkWindow* gdk_window = gtk_widget_get_window(GTK_WIDGET(window_));
-  gdk_window_get_origin(gdk_window, &win_x, &win_y);
-
-  GdkWindowEdge edge;
-  gfx::Point point(static_cast<int>(event->x_root - win_x),
-                   static_cast<int>(event->y_root - win_y));
-  bool has_hit_edge = GetWindowEdge(point.x(), point.y(), &edge);
-  if (has_hit_edge) {
-    gdk_window_raise(gdk_window);
-    EnsureDragHelperCreated();
-    // Resize cursor was set by PanelGtk when mouse moved over window edge.
-    GdkCursor* cursor =
-        gdk_window_get_cursor(gtk_widget_get_window(GTK_WIDGET(window_)));
-    drag_helper_->InitialWindowEdgeMousePress(event, cursor, edge);
-    return TRUE;
-  }
-
-  return FALSE;  // Continue to propagate the event.
-}
-
-void PanelGtk::ActiveWindowChanged(GdkWindow* active_window) {
-  // Do nothing if we're in the process of closing the panel window.
-  if (!window_)
-    return;
-
-  bool is_active = gtk_widget_get_window(GTK_WIDGET(window_)) == active_window;
-  if (is_active == is_active_)
-    return;  // State did not change.
-
-  if (is_active) {
-    // If there's an app modal dialog (e.g., JS alert), try to redirect
-    // the user's attention to the window owning the dialog.
-    if (AppModalDialogQueue::GetInstance()->HasActiveDialog()) {
-      AppModalDialogQueue::GetInstance()->ActivateModalDialog();
-      return;
-    }
-  }
-
-  is_active_ = is_active;
-  titlebar_->UpdateTextColor();
-  InvalidateWindow();
-  panel_->OnActiveStateChanged(is_active_);
-}
-
-// Callback for the delete event.  This event is fired when the user tries to
-// close the window.
-gboolean PanelGtk::OnMainWindowDeleteEvent(GtkWidget* widget,
-                                           GdkEvent* event) {
-  ClosePanel();
-
-  // Return true to prevent the gtk window from being destroyed.  Close will
-  // destroy it for us.
-  return TRUE;
-}
-
-void PanelGtk::OnMainWindowDestroy(GtkWidget* widget) {
-  // BUG 8712. When we gtk_widget_destroy() in ClosePanel(), this will emit the
-  // signal right away, and we will be here (while ClosePanel() is still in the
-  // call stack). Let stack unwind before deleting the panel.
-  //
-  // We don't want to use DeleteSoon() here since it won't work on a nested pump
-  // (like in UI tests).
-  base::MessageLoop::current()->PostTask(
-      FROM_HERE, base::Bind(&base::DeletePointer<PanelGtk>, this));
-}
-
-void PanelGtk::ShowPanel() {
-  gtk_window_present(window_);
-  RevealPanel();
-}
-
-void PanelGtk::ShowPanelInactive() {
-  gtk_window_set_focus_on_map(window_, false);
-  gtk_widget_show(GTK_WIDGET(window_));
-  RevealPanel();
-}
-
-void PanelGtk::RevealPanel() {
-  DCHECK(!is_shown_);
-  is_shown_ = true;
-  SetBoundsInternal(bounds_);
-}
-
-gfx::Rect PanelGtk::GetPanelBounds() const {
-  return bounds_;
-}
-
-void PanelGtk::SetPanelBounds(const gfx::Rect& bounds) {
-  SetBoundsInternal(bounds);
-}
-
-void PanelGtk::SetPanelBoundsInstantly(const gfx::Rect& bounds) {
-  SetBoundsInternal(bounds);
-}
-
-void PanelGtk::SetBoundsInternal(const gfx::Rect& bounds) {
-  if (is_shown_) {
-    gdk_window_move_resize(gtk_widget_get_window(GTK_WIDGET(window_)),
-                           bounds.x(), bounds.y(),
-                           bounds.width(), bounds.height());
-  }
-
-  bounds_ = bounds;
-
-  titlebar_->SendEnterNotifyToCloseButtonIfUnderMouse();
-  panel_->manager()->OnPanelAnimationEnded(panel_.get());
-}
-
-void PanelGtk::ClosePanel() {
-  // We're already closing.  Do nothing.
-  if (!window_)
-    return;
-
-  if (!panel_->ShouldCloseWindow())
-    return;
-
-  if (drag_helper_.get())
-    drag_helper_.reset();
-
-  if (accel_group_)
-    DisconnectAccelerators();
-
-  // Cancel any pending callback from the loading animation timer.
-  loading_animation_timer_.Stop();
-
-  if (panel_->GetWebContents()) {
-    // Hide the window (so it appears to have closed immediately).
-    // When web contents are destroyed, we will be called back again.
-    gtk_widget_hide(GTK_WIDGET(window_));
-    panel_->OnWindowClosing();
-    return;
-  }
-
-  GtkWidget* window = GTK_WIDGET(window_);
-  // To help catch bugs in any event handlers that might get fired during the
-  // destruction, set window_ to NULL before any handlers will run.
-  window_ = NULL;
-
-  panel_->OnNativePanelClosed();
-
-  // We don't want GlobalMenuBar handling any notifications or commands after
-  // the window is destroyed.
-  // TODO(jennb):  global_menu_bar_->Disable();
-  gtk_widget_destroy(window);
-}
-
-void PanelGtk::ActivatePanel() {
-  gtk_window_present(window_);
-
-  // When the user clicks to expand the minimized panel, the panel has already
-  // become an active window before gtk_window_present is called. Thus the
-  // active window change event, fired by ActiveWindowWatcherXObserver, is not
-  // triggered. We need to call ActiveWindowChanged manually to update panel's
-  // active status. It is OK to call ActiveWindowChanged with the same active
-  // window twice since the 2nd call is just a no-op.
-  ActiveWindowChanged(gtk_widget_get_window(GTK_WIDGET(window_)));
-}
-
-void PanelGtk::DeactivatePanel() {
-  // When a panel is deactivated, it should not be lowered to the bottom of the
-  // z-order. We could put it behind other panel window.
-  Panel* other_panel = NULL;
-  // First, try to pick the sibling panel in the same stack.
-  StackedPanelCollection* stack = panel_->stack();
-  if (stack && stack->num_panels()) {
-    other_panel = panel_ != stack->top_panel() ? stack->top_panel()
-                                               : stack->bottom_panel();
-  }
-  // Then, try to pick other detached or stacked panel.
-  if (!other_panel) {
-    std::vector<Panel*> panels =
-        panel_->manager()->GetDetachedAndStackedPanels();
-    if (!panels.empty())
-      other_panel = panel_ != panels.front() ? panels.front() : panels.back();
-  }
-
-  gdk_window_restack(
-      gtk_widget_get_window(GTK_WIDGET(window_)),
-      other_panel ? gtk_widget_get_window(
-          GTK_WIDGET(other_panel->GetNativeWindow())) : NULL,
-      false);
-
-  // Per ICCCM: http://tronche.com/gui/x/icccm/sec-4.html#s-4.1.7
-  // A convention is also required for clients that want to give up the
-  // input focus. There is no safe value set for them to set the input
-  // focus to; therefore, they should ignore input material.
-  //
-  // No way to deactive a GTK window. Pretend panel is deactivated
-  // and ignore input.
-  ActiveWindowChanged(NULL);
-}
-
-bool PanelGtk::IsPanelActive() const {
-  return is_active_;
-}
-
-void PanelGtk::PreventActivationByOS(bool prevent_activation) {
-  gtk_window_set_accept_focus(window_, !prevent_activation);
-}
-
-gfx::NativeWindow PanelGtk::GetNativePanelWindow() {
-  return window_;
-}
-
-void PanelGtk::UpdatePanelTitleBar() {
-  TRACE_EVENT0("ui::gtk", "PanelGtk::UpdatePanelTitleBar");
-  base::string16 title = panel_->GetWindowTitle();
-  gtk_window_set_title(window_, base::UTF16ToUTF8(title).c_str());
-  titlebar_->UpdateTitleAndIcon();
-
-  gfx::Image app_icon = panel_->app_icon();
-  if (!app_icon.IsEmpty())
-    gtk_util::SetWindowIcon(window_, panel_->profile(), app_icon.ToGdkPixbuf());
-}
-
-void PanelGtk::UpdatePanelLoadingAnimations(bool should_animate) {
-  if (should_animate) {
-    if (!loading_animation_timer_.IsRunning()) {
-      // Loads are happening, and the timer isn't running, so start it.
-      loading_animation_timer_.Start(FROM_HERE,
-          base::TimeDelta::FromMilliseconds(kLoadingAnimationFrameTimeMs),
-          this,
-          &PanelGtk::LoadingAnimationCallback);
-    }
-  } else {
-    if (loading_animation_timer_.IsRunning()) {
-      loading_animation_timer_.Stop();
-      // Loads are now complete, update the state if a task was scheduled.
-      LoadingAnimationCallback();
-    }
-  }
-}
-
-void PanelGtk::LoadingAnimationCallback() {
-  titlebar_->UpdateThrobber(panel_->GetWebContents());
-}
-
-void PanelGtk::PanelWebContentsFocused(content::WebContents* contents) {
-  // Nothing to do.
-}
-
-void PanelGtk::PanelCut() {
-  gtk_window_util::DoCut(window_, panel_->GetWebContents());
-}
-
-void PanelGtk::PanelCopy() {
-  gtk_window_util::DoCopy(window_, panel_->GetWebContents());
-}
-
-void PanelGtk::PanelPaste() {
-  gtk_window_util::DoPaste(window_, panel_->GetWebContents());
-}
-
-void PanelGtk::DrawAttention(bool draw_attention) {
-  DCHECK((panel_->attention_mode() & Panel::USE_PANEL_ATTENTION) != 0);
-
-  if (is_drawing_attention_ == draw_attention)
-    return;
-
-  is_drawing_attention_ = draw_attention;
-
-  titlebar_->UpdateTextColor();
-  InvalidateWindow();
-
-  if ((panel_->attention_mode() & Panel::USE_SYSTEM_ATTENTION) != 0) {
-    // May not be respected by all window managers.
-    gtk_window_set_urgency_hint(window_, draw_attention);
-  }
-}
-
-bool PanelGtk::IsDrawingAttention() const {
-  return is_drawing_attention_;
-}
-
-void PanelGtk::HandlePanelKeyboardEvent(
-    const NativeWebKeyboardEvent& event) {
-  GdkEventKey* os_event = &event.os_event->key;
-  if (os_event && event.type == blink::WebInputEvent::RawKeyDown)
-    gtk_window_activate_key(window_, os_event);
-}
-
-void PanelGtk::FullScreenModeChanged(bool is_full_screen) {
-  // No need to hide panels when entering the full-screen mode because the
-  // full-screen window will automatically be placed above all other windows.
-  if (is_full_screen)
-    return;
-
-  // Show the panel if not yet when leaving the full-screen mode. This is
-  // because the panel is not shown when it is being created under full-screen
-  // mode.
-  GdkWindow* gdk_window = gtk_widget_get_window(GTK_WIDGET(window_));
-  if (!GDK_IS_WINDOW(gdk_window) || !gdk_window_is_visible(gdk_window))
-    ShowPanelInactive();
-}
-
-void PanelGtk::PanelExpansionStateChanging(
-    Panel::ExpansionState old_state, Panel::ExpansionState new_state) {
-}
-
-void PanelGtk::AttachWebContents(content::WebContents* contents) {
-  if (!contents)
-    return;
-  gfx::NativeView widget = contents->GetView()->GetNativeView();
-  if (widget) {
-    gtk_container_add(GTK_CONTAINER(contents_expanded_), widget);
-    gtk_widget_show(widget);
-    contents->WasShown();
-  }
-}
-
-void PanelGtk::DetachWebContents(content::WebContents* contents) {
-  gfx::NativeView widget = contents->GetView()->GetNativeView();
-  if (widget) {
-    GtkWidget* parent = gtk_widget_get_parent(widget);
-    if (parent) {
-      DCHECK_EQ(parent, contents_expanded_);
-      gtk_container_remove(GTK_CONTAINER(contents_expanded_), widget);
-    }
-  }
-}
-
-gfx::Size PanelGtk::WindowSizeFromContentSize(
-    const gfx::Size& content_size) const {
-  gfx::Size& frame_size = GetFrameSize();
-  return gfx::Size(content_size.width() + frame_size.width(),
-                   content_size.height() + frame_size.height());
-}
-
-gfx::Size PanelGtk::ContentSizeFromWindowSize(
-    const gfx::Size& window_size) const {
-  gfx::Size& frame_size = GetFrameSize();
-  return gfx::Size(window_size.width() - frame_size.width(),
-                   window_size.height() - frame_size.height());
-}
-
-int PanelGtk::TitleOnlyHeight() const {
-  gfx::Size& frame_size = GetFrameSize();
-  if (!frame_size.IsEmpty())
-    return panel::kTitlebarHeight;
-
-  NOTREACHED() << "Checking title height before window allocated";
-  return 0;
-}
-
-bool PanelGtk::IsPanelAlwaysOnTop() const {
-  return always_on_top_;
-}
-
-void PanelGtk::SetPanelAlwaysOnTop(bool on_top) {
-  always_on_top_ = on_top;
-
-  gtk_window_set_keep_above(window_, on_top);
-
-  // Do not show an icon in the task bar for always-on-top windows.
-  // Window operations such as close, minimize etc. can only be done
-  // from the panel UI.
-  gtk_window_set_skip_taskbar_hint(window_, on_top);
-
-  // Show always-on-top windows on all the virtual desktops.
-  if (on_top)
-    gtk_window_stick(window_);
-  else
-    gtk_window_unstick(window_);
-}
-
-void PanelGtk::UpdatePanelMinimizeRestoreButtonVisibility() {
-  titlebar_->UpdateMinimizeRestoreButtonVisibility();
-}
-
-gfx::Size PanelGtk::GetNonClientFrameSize() const {
-  GtkAllocation window_allocation;
-  gtk_widget_get_allocation(window_container_, &window_allocation);
-  GtkAllocation contents_allocation;
-  gtk_widget_get_allocation(contents_expanded_, &contents_allocation);
-  return gfx::Size(window_allocation.width - contents_allocation.width,
-                   window_allocation.height - contents_allocation.height);
-}
-
-void PanelGtk::InvalidateWindow() {
-  GtkAllocation allocation;
-  gtk_widget_get_allocation(GTK_WIDGET(window_), &allocation);
-  gdk_window_invalidate_rect(gtk_widget_get_window(GTK_WIDGET(window_)),
-                             &allocation, TRUE);
-}
-
-// NativePanelTesting implementation.
-class GtkNativePanelTesting : public NativePanelTesting {
- public:
-  explicit GtkNativePanelTesting(PanelGtk* panel_gtk);
-
- private:
-  virtual void PressLeftMouseButtonTitlebar(
-      const gfx::Point& mouse_location, panel::ClickModifier modifier) OVERRIDE;
-  virtual void ReleaseMouseButtonTitlebar(
-      panel::ClickModifier modifier) OVERRIDE;
-  virtual void DragTitlebar(const gfx::Point& mouse_location) OVERRIDE;
-  virtual void CancelDragTitlebar() OVERRIDE;
-  virtual void FinishDragTitlebar() OVERRIDE;
-  virtual bool VerifyDrawingAttention() const OVERRIDE;
-  virtual bool VerifyActiveState(bool is_active) OVERRIDE;
-  virtual bool VerifyAppIcon() const OVERRIDE;
-  virtual bool VerifySystemMinimizeState() const OVERRIDE;
-  virtual bool IsWindowVisible() const OVERRIDE;
-  virtual bool IsWindowSizeKnown() const OVERRIDE;
-  virtual bool IsAnimatingBounds() const OVERRIDE;
-  virtual bool IsButtonVisible(
-      panel::TitlebarButtonType button_type) const OVERRIDE;
-  virtual panel::CornerStyle GetWindowCornerStyle() const OVERRIDE;
-  virtual bool EnsureApplicationRunOnForeground() OVERRIDE;
-
-  PanelGtk* panel_gtk_;
-};
-
-NativePanelTesting* PanelGtk::CreateNativePanelTesting() {
-  return new GtkNativePanelTesting(this);
-}
-
-GtkNativePanelTesting::GtkNativePanelTesting(PanelGtk* panel_gtk)
-    : panel_gtk_(panel_gtk) {
-}
-
-void GtkNativePanelTesting::PressLeftMouseButtonTitlebar(
-    const gfx::Point& mouse_location, panel::ClickModifier modifier) {
-
-  GdkEvent* event = gdk_event_new(GDK_BUTTON_PRESS);
-  event->button.button = 1;
-  event->button.x_root = mouse_location.x();
-  event->button.y_root = mouse_location.y();
-  if (modifier == panel::APPLY_TO_ALL)
-    event->button.state |= GDK_CONTROL_MASK;
-  panel_gtk_->OnTitlebarButtonPressEvent(
-      NULL, reinterpret_cast<GdkEventButton*>(event));
-  gdk_event_free(event);
-  base::MessageLoopForUI::current()->RunUntilIdle();
-}
-
-void GtkNativePanelTesting::ReleaseMouseButtonTitlebar(
-    panel::ClickModifier modifier) {
-  GdkEvent* event = gdk_event_new(GDK_BUTTON_RELEASE);
-  event->button.button = 1;
-  if (modifier == panel::APPLY_TO_ALL)
-    event->button.state |= GDK_CONTROL_MASK;
-  if (panel_gtk_->drag_helper_.get()) {
-    panel_gtk_->drag_helper_->OnButtonReleaseEvent(
-        NULL, reinterpret_cast<GdkEventButton*>(event));
-  } else {
-    panel_gtk_->OnTitlebarButtonReleaseEvent(
-        NULL, reinterpret_cast<GdkEventButton*>(event));
-  }
-  gdk_event_free(event);
-  base::MessageLoopForUI::current()->RunUntilIdle();
-}
-
-void GtkNativePanelTesting::DragTitlebar(const gfx::Point& mouse_location) {
-  if (!panel_gtk_->drag_helper_.get())
-    return;
-  GdkEvent* event = gdk_event_new(GDK_MOTION_NOTIFY);
-  event->motion.x_root = mouse_location.x();
-  event->motion.y_root = mouse_location.y();
-  panel_gtk_->drag_helper_->OnMouseMoveEvent(
-      NULL, reinterpret_cast<GdkEventMotion*>(event));
-  gdk_event_free(event);
-  base::MessageLoopForUI::current()->RunUntilIdle();
-}
-
-void GtkNativePanelTesting::CancelDragTitlebar() {
-  if (!panel_gtk_->drag_helper_.get())
-    return;
-  panel_gtk_->drag_helper_->OnGrabBrokenEvent(NULL, NULL);
-  base::MessageLoopForUI::current()->RunUntilIdle();
-}
-
-void GtkNativePanelTesting::FinishDragTitlebar() {
-  if (!panel_gtk_->drag_helper_.get())
-    return;
-  ReleaseMouseButtonTitlebar(panel::NO_MODIFIER);
-}
-
-bool GtkNativePanelTesting::VerifyDrawingAttention() const {
-  return panel_gtk_->IsDrawingAttention();
-}
-
-bool GtkNativePanelTesting::VerifyActiveState(bool is_active) {
-  return gtk_window_is_active(panel_gtk_->GetNativePanelWindow()) == is_active;
-}
-
-bool GtkNativePanelTesting::VerifyAppIcon() const {
-  GdkPixbuf* icon = gtk_window_get_icon(panel_gtk_->GetNativePanelWindow());
-  return icon &&
-         gdk_pixbuf_get_width(icon) == panel::kPanelAppIconSize &&
-         gdk_pixbuf_get_height(icon) == panel::kPanelAppIconSize;
-}
-
-bool GtkNativePanelTesting::VerifySystemMinimizeState() const {
-  // TODO(jianli): to be implemented.
-  return true;
-}
-
-bool GtkNativePanelTesting::IsWindowVisible() const {
-  GdkWindow* gdk_window =
-      gtk_widget_get_window(GTK_WIDGET(panel_gtk_->GetNativePanelWindow()));
-  return GDK_IS_WINDOW(gdk_window) && gdk_window_is_visible(gdk_window);
-}
-
-bool GtkNativePanelTesting::IsWindowSizeKnown() const {
-  return !GetFrameSize().IsEmpty();
-}
-
-bool GtkNativePanelTesting::IsAnimatingBounds() const {
-  return false;
-}
-
-bool GtkNativePanelTesting::IsButtonVisible(
-    panel::TitlebarButtonType button_type) const {
-  PanelTitlebarGtk* titlebar = panel_gtk_->titlebar();
-  CustomDrawButton* button;
-  switch (button_type) {
-    case panel::CLOSE_BUTTON:
-      button = titlebar->close_button();
-      break;
-    case panel::MINIMIZE_BUTTON:
-      button = titlebar->minimize_button();
-      break;
-    case panel::RESTORE_BUTTON:
-      button = titlebar->restore_button();
-      break;
-    default:
-      NOTREACHED();
-      return false;
-  }
-  return gtk_widget_get_visible(button->widget());
-}
-
-panel::CornerStyle GtkNativePanelTesting::GetWindowCornerStyle() const {
-  return panel_gtk_->corner_style_;
-}
-
-bool GtkNativePanelTesting::EnsureApplicationRunOnForeground() {
-  // Not needed on GTK.
-  return true;
-}