Enable AutoResize for Constrained Web Dialogs for Mac.

chrome/browser/ui/cocoa/constrained_window/constrained_window_mac_browsertest.mm

Index: chrome/browser/ui/cocoa/constrained_window/constrained_window_mac_browsertest.mm
diff --git a/chrome/browser/ui/cocoa/constrained_window/constrained_window_mac_browsertest.mm b/chrome/browser/ui/cocoa/constrained_window/constrained_window_mac_browsertest.mm
index 5456a25e9436ba03c9852fa496a5d50ed6e0a273..f5712aadb2c191cd386f07541a7c184b0fcb8cfb 100644
--- a/chrome/browser/ui/cocoa/constrained_window/constrained_window_mac_browsertest.mm
+++ b/chrome/browser/ui/cocoa/constrained_window/constrained_window_mac_browsertest.mm
@@ -77,14 +77,15 @@ class ConstrainedWindowMacTest : public InProcessBrowserTest {
 IN_PROC_BROWSER_TEST_F(ConstrainedWindowMacTest, ShowInInactiveTab) {
   // Show dialog in non active tab.
   NiceMock<ConstrainedWindowDelegateMock> delegate;
-  ConstrainedWindowMac dialog(&delegate, tab0_, sheet_);
+  ConstrainedWindowMac* dialog =
+      CreateAndShowWebModalDialogMac(&delegate, tab0_, sheet_);
   EXPECT_EQ(0.0, [sheet_window_ alphaValue]);
 
   // Switch to inactive tab.
   browser()->tab_strip_model()->ActivateTabAt(0, true);
   EXPECT_EQ(1.0, [sheet_window_ alphaValue]);
 
-  dialog.CloseWebContentsModalDialog();
+  dialog->CloseWebContentsModalDialog();
 }
 
 // If a tab has never been shown then the associated tab view for the web
@@ -103,7 +104,8 @@ IN_PROC_BROWSER_TEST_F(ConstrainedWindowMacTest, ShowInUninitializedTab) {
 
   // Show dialog and verify that it's not visible yet.
   NiceMock<ConstrainedWindowDelegateMock> delegate;
-  ConstrainedWindowMac dialog(&delegate, tab2, sheet_);
+  ConstrainedWindowMac* dialog =
+      CreateAndShowWebModalDialogMac(&delegate, tab2, sheet_);
   EXPECT_FALSE([sheet_window_ isVisible]);
 
   // Activate the tab and verify that the constrained window is shown.
@@ -112,25 +114,26 @@ IN_PROC_BROWSER_TEST_F(ConstrainedWindowMacTest, ShowInUninitializedTab) {
   EXPECT_TRUE([sheet_window_ isVisible]);
   EXPECT_EQ(1.0, [sheet_window_ alphaValue]);
 
-  dialog.CloseWebContentsModalDialog();
+  dialog->CloseWebContentsModalDialog();
 }
 
 // Test that adding a sheet disables tab dragging.
 IN_PROC_BROWSER_TEST_F(ConstrainedWindowMacTest, TabDragging) {
   NiceMock<ConstrainedWindowDelegateMock> delegate;
-  ConstrainedWindowMac dialog(&delegate, tab1_, sheet_);
+  ConstrainedWindowMac* dialog =
+      CreateAndShowWebModalDialogMac(&delegate, tab1_, sheet_);
 
   // Verify that the dialog disables dragging.
   EXPECT_TRUE([controller_ isTabDraggable:tab_view0_]);
   EXPECT_FALSE([controller_ isTabDraggable:tab_view1_]);
 
-  dialog.CloseWebContentsModalDialog();
+  dialog->CloseWebContentsModalDialog();
 }
 
 // Test that closing a browser window with a sheet works.
 IN_PROC_BROWSER_TEST_F(ConstrainedWindowMacTest, BrowserWindowClose) {
   NiceMock<ConstrainedWindowDelegateMock> delegate;
-  ConstrainedWindowMac dialog(&delegate, tab1_, sheet_);
+  CreateAndShowWebModalDialogMac(&delegate, tab1_, sheet_);
   EXPECT_EQ(1.0, [sheet_window_ alphaValue]);
 
   // Close the browser window.
@@ -144,7 +147,7 @@ IN_PROC_BROWSER_TEST_F(ConstrainedWindowMacTest, BrowserWindowClose) {
 // Test that closing a tab with a sheet works.
 IN_PROC_BROWSER_TEST_F(ConstrainedWindowMacTest, TabClose) {
   NiceMock<ConstrainedWindowDelegateMock> delegate;
-  ConstrainedWindowMac dialog(&delegate, tab1_, sheet_);
+  CreateAndShowWebModalDialogMac(&delegate, tab1_, sheet_);
   EXPECT_EQ(1.0, [sheet_window_ alphaValue]);
 
   // Close the tab.