[rAC] Allow sub-views to trigger layout reflow.

chrome/browser/ui/cocoa/autofill/autofill_details_container.mm

Index: chrome/browser/ui/cocoa/autofill/autofill_details_container.mm
diff --git a/chrome/browser/ui/cocoa/autofill/autofill_details_container.mm b/chrome/browser/ui/cocoa/autofill/autofill_details_container.mm
index 56c20b8b5c018aa097df195a4b14b2201e7bfe96..5a88597af879c908965acf91af53d953a8bddcdc 100644
--- a/chrome/browser/ui/cocoa/autofill/autofill_details_container.mm
+++ b/chrome/browser/ui/cocoa/autofill/autofill_details_container.mm
@@ -4,6 +4,8 @@
 
 #import "chrome/browser/ui/cocoa/autofill/autofill_details_container.h"
 
+#include <algorithm>
+
 #include "chrome/browser/ui/autofill/autofill_dialog_controller.h"
 #import "chrome/browser/ui/cocoa/autofill/autofill_section_container.h"
 
@@ -33,15 +35,33 @@
   [self addSection:autofill::SECTION_SHIPPING];
 
   [self setView:[[NSView alloc] init]];
+  for (AutofillSectionContainer* container in details_.get())
+    [[self view] addSubview:[container view]];
+
+  [self performLayout];
+}
+
+- (NSSize)preferredSize {
+  NSSize size = NSMakeSize(0, 0);
 
+  for (AutofillSectionContainer* container in details_.get()) {
+    NSSize containerSize = [container preferredSize];
+    size.height += containerSize.height;
+    size.width = std::max(containerSize.width, size.width);
+  }
+  return size;
+}
+
+- (void)performLayout {
   NSRect rect = NSZeroRect;
   for (AutofillSectionContainer* container in
       [details_ reverseObjectEnumerator]) {
+    [container performLayout];
     [[container view] setFrameOrigin:NSMakePoint(0, NSMaxY(rect))];
     rect = NSUnionRect(rect, [[container view] frame]);
-    [[self view] addSubview:[container view]];
   }
-  [[self view] setFrame:rect];
+
+  [[self view] setFrameSize:[self preferredSize]];
 }
 
 - (AutofillSectionContainer*)sectionForId:(autofill::DialogSection)section {