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

chrome/browser/ui/views/constrained_web_dialog_delegate_views.cc

Index: chrome/browser/ui/views/constrained_web_dialog_delegate_views.cc
diff --git a/chrome/browser/ui/views/constrained_web_dialog_delegate_views.cc b/chrome/browser/ui/views/constrained_web_dialog_delegate_views.cc
index de8ef012e172b6ff4c8387c266011bfab0f08ab4..f822bd7fa82c48ef1d834bbae21f014bfce6d319 100644
--- a/chrome/browser/ui/views/constrained_web_dialog_delegate_views.cc
+++ b/chrome/browser/ui/views/constrained_web_dialog_delegate_views.cc
@@ -23,6 +23,10 @@
 #include "ui/web_dialogs/web_dialog_delegate.h"
 #include "ui/web_dialogs/web_dialog_ui.h"
 
+#if defined(OS_WIN)
+#include "ui/base/win/shell.h"
+#endif
+
 namespace {
 
 // WebContentsObserver that tracks the lifetime of the WebContents to avoid
@@ -144,14 +148,16 @@ class ConstrainedWebDialogDelegateViewViews
       ui::WebDialogDelegate* delegate,
       content::WebContents* web_contents,
       const gfx::Size& min_size,
-      const gfx::Size& max_size)
+      const gfx::Size& max_size,
+      bool independent_bounds)
       : views::WebView(browser_context),
         initiator_observer_(web_contents),
         impl_(new ConstrainedWebDialogDelegateViews(browser_context, delegate,
                                                     &initiator_observer_,
                                                     this)),
         min_size_(min_size),
-        max_size_(max_size) {
+        max_size_(max_size),
+        independent_bounds_(independent_bounds){
     SetWebContents(GetWebContents());
     AddAccelerator(ui::Accelerator(ui::VKEY_ESCAPE, ui::EF_NONE));
     if (!max_size_.IsEmpty())
@@ -227,6 +233,9 @@ class ConstrainedWebDialogDelegateViewViews
   gfx::Size GetMaximumSize() const override {
     return !max_size_.IsEmpty() ? max_size_ : WebView::GetMaximumSize();
   }
+  bool * GetIndependentBounds() {
+    return &independent_bounds_;
+  }
   void RenderViewCreated(content::RenderViewHost* render_view_host) override {
     if (!max_size_.IsEmpty())
       EnableAutoResize();
@@ -240,7 +249,9 @@ class ConstrainedWebDialogDelegateViewViews
     if (!max_size_.IsEmpty() && initiator_observer_.web_contents()) {
       web_modal::WebContentsModalDialogManager::FromWebContents(
           initiator_observer_.web_contents())
-          ->ShowModalDialog(GetWidget()->GetNativeWindow());
+          ->ShowModalDialog(GetWidget()->GetNativeWindow(),
+                            GetIndependentBounds(),
+                            constrained_window::kHasIndependentBoundsKey);
     }
   }
 
@@ -258,6 +269,7 @@ class ConstrainedWebDialogDelegateViewViews
   // Minimum and maximum sizes to determine dialog bounds for auto-resizing.
   const gfx::Size min_size_;
   const gfx::Size max_size_;
+  bool independent_bounds_;
 
   DISALLOW_COPY_AND_ASSIGN(ConstrainedWebDialogDelegateViewViews);
 };
@@ -271,11 +283,32 @@ ConstrainedWebDialogDelegate* ShowConstrainedWebDialog(
   ConstrainedWebDialogDelegateViewViews* dialog =
       new ConstrainedWebDialogDelegateViewViews(
           browser_context, delegate, web_contents,
-          gfx::Size(), gfx::Size());
+          gfx::Size(), gfx::Size(), false);
   constrained_window::ShowWebModalDialogViews(dialog, web_contents);
   return dialog;
 }
 
+ConstrainedWebDialogDelegate* ShowTopLevelConstrainedWebDialog(
+    content::BrowserContext* browser_context,
+    ui::WebDialogDelegate* delegate,
+    content::WebContents* web_contents) {
+// This doesn't work on Linux desktop or windows classic themes.
+#if defined(OS_LINUX) && !defined(OS_CHROMEOS)
+  return ShowConstrainedWebDialog(browser_context, delegate, web_contents);
+#elif defined(OS_WIN)
+  if (!ui::win::IsAeroGlassEnabled())
+    return ShowConstrainedWebDialog(browser_context, delegate, web_contents);
+#endif
+
+  ConstrainedWebDialogDelegateViewViews* dialog =
+      new ConstrainedWebDialogDelegateViewViews(
+          browser_context, delegate, web_contents,
+          gfx::Size(), gfx::Size(), true);
+  constrained_window::ShowWebModalDialogWithIndBoundsViews(dialog,
+      web_contents, dialog->GetIndependentBounds());
+  return dialog;
+}
+
 ConstrainedWebDialogDelegate* ShowConstrainedWebDialogWithAutoResize(
     content::BrowserContext* browser_context,
     ui::WebDialogDelegate* delegate,
@@ -287,7 +320,7 @@ ConstrainedWebDialogDelegate* ShowConstrainedWebDialogWithAutoResize(
   ConstrainedWebDialogDelegateViewViews* dialog =
       new ConstrainedWebDialogDelegateViewViews(
           browser_context, delegate, web_contents,
-          min_size, max_size);
+          min_size, max_size, false);
   constrained_window::CreateWebModalDialogViews(dialog, web_contents);
   return dialog;
 }