Refactor away the Browser* dependency in exclusive_access

chrome/browser/ui/cocoa/browser_window_cocoa.mm

Index: chrome/browser/ui/cocoa/browser_window_cocoa.mm
diff --git a/chrome/browser/ui/cocoa/browser_window_cocoa.mm b/chrome/browser/ui/cocoa/browser_window_cocoa.mm
index 96ea6f193352e00ad243145d0818c05b575d6dd3..92fe33df1ca9105c5ea3a6cf37f74dfb7234bbed 100644
--- a/chrome/browser/ui/cocoa/browser_window_cocoa.mm
+++ b/chrome/browser/ui/cocoa/browser_window_cocoa.mm
@@ -406,7 +406,7 @@ void BrowserWindowCocoa::ExitFullscreen() {
   [controller_ exitAnyFullscreen];
 }
 
-void BrowserWindowCocoa::UpdateFullscreenExitBubbleContent(
+void BrowserWindowCocoa::UpdateExclusiveAccessExitBubbleContent(
     const GURL& url,
     ExclusiveAccessBubbleType bubble_type) {
   [controller_ updateFullscreenExitBubbleURL:url bubbleType:bubble_type];
@@ -820,3 +820,26 @@ void BrowserWindowCocoa::ExecuteExtensionCommand(
     const extensions::Command& command) {
   [cocoa_controller() executeExtensionCommand:extension->id() command:command];
 }
+
+ExclusiveAccessContext* BrowserWindowCocoa::GetExclusiveAccessContext() {
+  return this;
+}
+
+Profile* BrowserWindowCocoa::GetProfile() {
+  return browser_->profile();
+}
+
+WebContents* BrowserWindowCocoa::GetActiveWebContents() {
+  return browser_->tab_strip_model()->GetActiveWebContents();
+}
+
+void BrowserWindowCocoa::UnhideDownloadShelf() {
+  GetDownloadShelf()->Unhide();
+}
+
+void BrowserWindowCocoa::HideDownloadShelf() {
+  GetDownloadShelf()->Hide();
+  StatusBubble* statusBubble = GetStatusBubble();
+  if (statusBubble)
+    statusBubble->Hide();
+}