views: Forward declare "class View;" in layout_manager.h

And move the include of views/view.h from the header to the source file.

BUG=None
TEST=trybots

Review URL: http://codereview.chromium.org/6332013

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@72587 0039d316-1c4b-4281-b951-d872f2087c98

4 files changed, 21 insertions, 5 deletions

diff --git a/views/layout/box_layout.cc b/views/layout/box_layout.cc
index 5025d7e..6a6ede6 100644
--- a/views/layout/box_layout.cc
+++ b/views/layout/box_layout.cc
@@ -4,6 +4,10 @@
 
 #include "views/layout/box_layout.h"
 
+#include "gfx/insets.h"
+#include "gfx/rect.h"
+#include "views/view.h"
+
 namespace views {
 
 BoxLayout::BoxLayout(BoxLayout::Orientation orientation,
@@ -16,6 +20,9 @@ BoxLayout::BoxLayout(BoxLayout::Orientation orientation,
       between_child_spacing_(between_child_spacing) {
 }
 
+BoxLayout::~BoxLayout() {
+}
+
 void BoxLayout::Layout(View* host) {
   gfx::Rect childArea(gfx::Rect(host->size()));
   childArea.Inset(host->GetInsets());
diff --git a/views/layout/box_layout.h b/views/layout/box_layout.h
index fde203c..e2910b4 100644
--- a/views/layout/box_layout.h
+++ b/views/layout/box_layout.h
@@ -7,10 +7,17 @@
 #pragma once
 
 #include "base/basictypes.h"
+#include "base/compiler_specific.h"
 #include "views/layout/layout_manager.h"
 
+namespace gfx {
+class Size;
+}
+
 namespace views {
 
+class View;
+
 // A Layout manager that arranges child views vertically or horizontally in a
 // side-by-side fashion with spacing around and between the child views. The
 // child views are always sized according to their preferred size. If the
@@ -31,11 +38,11 @@ class BoxLayout : public LayoutManager {
             int inside_border_horizontal_spacing,
             int inside_border_vertical_spacing,
             int between_child_spacing);
-  virtual ~BoxLayout() {}
+  virtual ~BoxLayout();
 
   // Overridden from views::LayoutManager:
-  virtual void Layout(View* host);
-  virtual gfx::Size GetPreferredSize(View* host);
+  virtual void Layout(View* host) OVERRIDE;
+  virtual gfx::Size GetPreferredSize(View* host) OVERRIDE;
 
  private:
   const Orientation orientation_;
diff --git a/views/layout/layout_manager.cc b/views/layout/layout_manager.cc
index adaad9f..c62c6bb 100644
--- a/views/layout/layout_manager.cc
+++ b/views/layout/layout_manager.cc
@@ -4,6 +4,8 @@
 
 #include "views/layout/layout_manager.h"
 
+#include "views/view.h"
+
 namespace views {
 
 LayoutManager::~LayoutManager() {
diff --git a/views/layout/layout_manager.h b/views/layout/layout_manager.h
index 328238a..3fb99c1 100644
--- a/views/layout/layout_manager.h
+++ b/views/layout/layout_manager.h
@@ -6,14 +6,14 @@
 #define VIEWS_LAYOUT_MANAGER_H_
 #pragma once
 
-#include "views/view.h"
-
 namespace gfx {
 class Size;
 }
 
 namespace views {
 
+class View;
+
 /////////////////////////////////////////////////////////////////////////////
 //
 // LayoutManager interface