Created min size for print preview dialog and modified to allow the

chrome/browser/printing/print_preview_test.cc

Index: chrome/browser/printing/print_preview_test.cc
diff --git a/chrome/browser/printing/print_preview_test.cc b/chrome/browser/printing/print_preview_test.cc
index 939a89d06e4014c6e4e1fe1ca412113a35fb64b1..00a528a9c6fcc5819a68e2e438d1c8dfeae30b5f 100644
--- a/chrome/browser/printing/print_preview_test.cc
+++ b/chrome/browser/printing/print_preview_test.cc
@@ -4,8 +4,10 @@
 
 #include "chrome/browser/printing/print_preview_test.h"
 
+#include "chrome/browser/printing/print_preview_dialog_controller.h"
 #include "chrome/test/base/dialog_test_browser_window.h"
 #include "content/public/browser/plugin_service.h"
+#include "ui/views/window/dialog_delegate.h"
 
 PrintPreviewTest::PrintPreviewTest() {}
 PrintPreviewTest::~PrintPreviewTest() {}
@@ -21,3 +23,27 @@ void PrintPreviewTest::SetUp() {
 BrowserWindow* PrintPreviewTest::CreateBrowserWindow() {
   return new DialogTestBrowserWindow;
 }
+
+#if defined(USE_AURA)
+PrintPreviewDialogControllerTest::PrintPreviewDialogControllerTest(
+    gfx::NativeView context): context_(context) {}
+
+PrintPreviewDialogControllerTest::~PrintPreviewDialogControllerTest() {}
+
+// Need to override the function to get the delegate so that it uses the
+// correct window.
+ConstrainedWebDialogDelegate* PrintPreviewDialogControllerTest::
+    GetWebDialogDelegate(
+    content::WebContents* initiator) {
+  ConstrainedWebDialogDelegate* dialog =
+    ShowTopLevelConstrainedWebDialogInWindow(
+         initiator->GetBrowserContext(),
+         printing::GetPrintPreviewDialogDelegate(initiator),
+         initiator, context_);
+  return dialog;
+}
+
+void PrintPreviewDialogControllerTest::SetContext(gfx::NativeView context) {
+  context_ = context;
+}
+#endif