WebUI TaskManager: Add method to set minimum window size on HTMLDialog.

chrome/browser/ui/cocoa/html_dialog_window_controller.mm

Index: chrome/browser/ui/cocoa/html_dialog_window_controller.mm
diff --git a/chrome/browser/ui/cocoa/html_dialog_window_controller.mm b/chrome/browser/ui/cocoa/html_dialog_window_controller.mm
index feffdf97c58947c151f11fa6cf0d5f1dd8659710..a0b847b1ecb0ee649bd5de14e5423176dd125b42 100644
--- a/chrome/browser/ui/cocoa/html_dialog_window_controller.mm
+++ b/chrome/browser/ui/cocoa/html_dialog_window_controller.mm
@@ -51,6 +51,7 @@ public:
   virtual void GetWebUIMessageHandlers(
       std::vector<WebUIMessageHandler*>* handlers) const OVERRIDE;
   virtual void GetDialogSize(gfx::Size* size) const OVERRIDE;
+  virtual void GetMinimumDialogSize(gfx::Size* size) const OVERRIDE;
   virtual std::string GetDialogArgs() const OVERRIDE;
   virtual void OnDialogClosed(const std::string& json_retval) OVERRIDE;
   virtual void OnCloseContents(WebContents* source,
@@ -179,11 +180,18 @@ void HtmlDialogWindowDelegateBridge::GetWebUIMessageHandlers(
 }
 
 void HtmlDialogWindowDelegateBridge::GetDialogSize(gfx::Size* size) const {
-  if (delegate_) {
+  if (delegate_)
     delegate_->GetDialogSize(size);
-  } else {
+  else
+    *size = gfx::Size();
+}
+
+void HtmlDialogWindowDelegateBridge::GetMinimumDialogSize(
+    gfx::Size* size) const {
+  if (delegate_)
+    delegate_->GetMinimumDialogSize(size);
+  else
     *size = gfx::Size();
-  }
 }
 
 std::string HtmlDialogWindowDelegateBridge::GetDialogArgs() const {