[Mac] Lay out the browser window when adding the download shelf.

chrome/browser/ui/cocoa/browser_window_controller.h

Index: chrome/browser/ui/cocoa/browser_window_controller.h
diff --git a/chrome/browser/ui/cocoa/browser_window_controller.h b/chrome/browser/ui/cocoa/browser_window_controller.h
index 705b592ef9c4dfb50b211658ff4f24bf2afd8ccf..0b24c9894eb2d1f10fd43a7bd1014eb210e8f6c7 100644
--- a/chrome/browser/ui/cocoa/browser_window_controller.h
+++ b/chrome/browser/ui/cocoa/browser_window_controller.h
@@ -17,6 +17,7 @@
 #include "base/mac/scoped_nsobject.h"
 #include "chrome/browser/extensions/browser_extension_window_controller.h"
 #include "chrome/browser/translate/chrome_translate_client.h"
+#include "chrome/browser/ui/browser.h"
 #import "chrome/browser/ui/cocoa/bookmarks/bookmark_bar_controller.h"
 #import "chrome/browser/ui/cocoa/bookmarks/bookmark_bubble_controller.h"
 #import "chrome/browser/ui/cocoa/tabs/tab_strip_controller.h"
@@ -32,7 +33,6 @@
 
 @class AvatarBaseController;
 class BookmarkBubbleObserverCocoa;
-class Browser;
 class BrowserWindow;
 class BrowserWindowCocoa;
 @class BrowserWindowFullscreenTransition;
@@ -65,6 +65,15 @@ namespace extensions {
 class Command;
 }
 
+inline NSSize MinWindowSizeForBrowserType(Browser::Type type) {

[tapted, 2017/03/13 00:25:36]

See later comment for details, but I think we need/want something like

constexpr const gfx::Size kMinCocoaTabbedWindowSize = gfx::Size(400, 272);
constexpr const gfx::Size kMinCocoaPopupWindowSize = gfx::Size(100, 122);

(you'll probably need to define them without an initializer in the .cc so they
have "storage" space)

You can call .ToCGSize() to get an NSSize.

constexpr const NSSize kFoo = {400, 272}; 

might also work. NSMakeSize: probably not (but maybe) - see later comment.

[Sidney San Martín, 2017/03/14 23:28:39]

Done. I don't think they need storage space
(http://stackoverflow.com/questions/34445336/).

+  switch (type) {
+    case Browser::TYPE_TABBED:
+      return NSMakeSize(400, 272);
+    case Browser::TYPE_POPUP:
+      return NSMakeSize(100, 122);
+  }
+}
+
 @interface BrowserWindowController
     : TabWindowController<BookmarkBarControllerDelegate,
                           ViewResizer,