Suppress -Wpartial-availability warnings that arise from NSWindowDelegate.

Some methods in the protocol NSWindowDelegate are only declared in an OSX 10.7+
SDK. There is no good way to suppress -Wpartial-availability warnings for
protocols. In BrowserWindowController, redeclare the methods in the private
header. For bridge_native_widget_unittest, use performSelector: to invoke the
methods.

BUG=471823

Review URL: https://codereview.chromium.org/1135333002

Cr-Commit-Position: refs/heads/master@{#330472}

base/mac/sdk_forward_declarations.h

@@ -176,11 +176,6 @@ enum {
                       aborted:(BOOL)aborted;
 @end
 
-@protocol NSWindowDelegateFullScreenAdditions
-- (void)windowDidFailToEnterFullScreen:(NSWindow*)window;
-- (void)windowDidFailToExitFullScreen:(NSWindow*)window;
-@end
-
 enum {
   CBPeripheralStateDisconnected = 0,
   CBPeripheralStateConnecting,

chrome/browser/ui/cocoa/browser_window_controller_private.h

@@ -164,6 +164,15 @@
 // out of AppKit Fullscreen.
 - (BOOL)shouldUseCustomAppKitFullscreenTransition;
 
+#if defined(MAC_OS_X_VERSION_10_7) && \
+    MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_7
+// Redeclare some methods from NSWindowDelegate to suppress
+// -Wpartial-availability warnings.
+- (void)windowDidEnterFullScreen:(NSNotification*)notification;
+- (void)windowDidExitFullScreen:(NSNotification*)notification;
+- (void)windowWillExitFullScreen:(NSNotification*)notification;
+#endif
+
 @end  // @interface BrowserWindowController(Private)
 
 #endif  // CHROME_BROWSER_UI_COCOA_BROWSER_WINDOW_CONTROLLER_PRIVATE_H_

ui/views/cocoa/bridged_native_widget_unittest.mm

@@ -17,6 +17,7 @@
 #import "ui/gfx/test/ui_cocoa_test_helper.h"
 #import "ui/views/cocoa/bridged_content_view.h"
 #import "ui/views/cocoa/native_widget_mac_nswindow.h"
+#import "ui/views/cocoa/views_nswindow_delegate.h"
 #include "ui/views/controls/textfield/textfield.h"
 #include "ui/views/ime/input_method.h"
 #include "ui/views/view.h"
@@ -489,7 +490,8 @@ TEST_F(BridgedNativeWidgetSimulateFullscreenTest, FailToEnterAndExit) {
   // Cocoa follows up with a failure message sent to the NSWindowDelegate (there
   // is no equivalent notification for failure). Called via id so that this
   // compiles on 10.6.
-  id window_delegate = [window delegate];
+  ViewsNSWindowDelegate* window_delegate =
+      base::mac::ObjCCast<ViewsNSWindowDelegate>([window delegate]);
   [window_delegate windowDidFailToEnterFullScreen:window];
   EXPECT_FALSE(bridge()->target_fullscreen_state());
 

ui/views/cocoa/views_nswindow_delegate.h

@@ -8,6 +8,7 @@
 #import <Cocoa/Cocoa.h>
 
 #import "base/mac/scoped_nsobject.h"
+#include "ui/views/views_export.h"
 
 namespace views {
 class NativeWidgetMac;
@@ -16,6 +17,7 @@ class BridgedNativeWidget;
 
 // The delegate set on the NSWindow when a views::BridgedNativeWidget is
 // initialized.
+VIEWS_EXPORT
 @interface ViewsNSWindowDelegate : NSObject<NSWindowDelegate> {
  @private
   views::BridgedNativeWidget* parent_;  // Weak. Owns this.
@@ -52,6 +54,11 @@ class BridgedNativeWidget;
          returnCode:(NSInteger)returnCode
         contextInfo:(void*)contextInfo;
 
+// Redeclare methods defined in the protocol NSWindowDelegate which are only
+// available on OSX 10.7+.
+- (void)windowDidFailToEnterFullScreen:(NSWindow*)window;
+- (void)windowDidFailToExitFullScreen:(NSWindow*)window;
+
 @end
 
 #endif  // UI_VIEWS_COCOA_VIEWS_NSWINDOW_DELEGATE_H_