exo: Add SetGeometry function to ShellSurface class.

components/exo/shell_surface.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 "components/exo/shell_surface.h"
 
 #include "ash/shell.h"
 #include "ash/shell_window_ids.h"
 #include "ash/wm/window_state.h"
 #include "base/logging.h"
@@ skipping 162 matching lines @@
 
 void ShellSurface::Move() {
   TRACE_EVENT0("exo", "ShellSurface::Move");
 
   if (widget_) {
     widget_->RunMoveLoop(gfx::Vector2d(), views::Widget::MOVE_LOOP_SOURCE_MOUSE,
                          views::Widget::MOVE_LOOP_ESCAPE_BEHAVIOR_DONT_HIDE);
   }
 }
 
+void ShellSurface::SetGeometry(const gfx::Rect& geometry) {
+  TRACE_EVENT1("exo", "ShellSurface::SetGeometry", "geometry",
+               geometry.ToString());
+
+  if (geometry.IsEmpty()) {
+    DLOG(WARNING) << "Surface geometry must be non-empty";
+    return;
+  }
+
+  geometry_ = geometry;
+}
+
 scoped_refptr<base::trace_event::TracedValue> ShellSurface::AsTracedValue()
     const {
   scoped_refptr<base::trace_event::TracedValue> value =
       new base::trace_event::TracedValue;
   value->SetString("title", base::UTF16ToUTF8(title_));
   value->SetString("application_id", application_id_);
   return value;
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // SurfaceDelegate overrides:
 
 void ShellSurface::OnSurfaceCommit() {
   surface_->CommitSurfaceHierarchy();
   if (widget_) {
     // Update surface bounds and widget size.
     gfx::Point origin;
     views::View::ConvertPointToWidget(this, &origin);
-    surface_->SetBounds(gfx::Rect(origin, surface_->layer()->size()));
+    surface_->SetBounds(gfx::Rect(origin - geometry_.OffsetFromOrigin(),
+                                  surface_->layer()->size()));
     widget_->SetSize(widget_->non_client_view()->GetPreferredSize());
 
     // Show widget if not already visible.
     if (!widget_->IsClosed() && !widget_->IsVisible())
       widget_->Show();
   }
 }
 
 bool ShellSurface::IsSurfaceSynchronized() const {
   // A shell surface is always desynchronized.
@@ skipping 29 matching lines @@
 
 views::NonClientFrameView* ShellSurface::CreateNonClientFrameView(
     views::Widget* widget) {
   return new CustomFrameView(widget);
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // views::Views overrides:
 
 gfx::Size ShellSurface::GetPreferredSize() const {
+  if (!geometry_.IsEmpty())
+    return geometry_.size();
+
   return surface_ ? surface_->GetPreferredSize() : gfx::Size();
 }
 
 }  // namespace exo