[Web Intents] Display throbber when loading inline disposition.

chrome/browser/ui/intents/web_intent_inline_disposition_delegate.h

Index: chrome/browser/ui/intents/web_intent_inline_disposition_delegate.h
diff --git a/chrome/browser/ui/intents/web_intent_inline_disposition_delegate.h b/chrome/browser/ui/intents/web_intent_inline_disposition_delegate.h
index 4fb85d673cf685295508f6dc5041990174ec788e..569321e59984711b99a52196f8f678f438f7a66e 100644
--- a/chrome/browser/ui/intents/web_intent_inline_disposition_delegate.h
+++ b/chrome/browser/ui/intents/web_intent_inline_disposition_delegate.h
@@ -9,11 +9,15 @@
 #include "base/compiler_specific.h"
 #include "content/public/browser/web_contents_delegate.h"
 
+class WebIntentPicker;
+
 // This class is the policy delegate for the rendered page in the intents
 // inline disposition bubble.
 class WebIntentInlineDispositionDelegate : public content::WebContentsDelegate {
  public:
-  WebIntentInlineDispositionDelegate();
+  // |picker| is notified when the web contents loading state changes. Must not
+  // be NULL.
+  explicit WebIntentInlineDispositionDelegate(WebIntentPicker* picker);
   virtual ~WebIntentInlineDispositionDelegate();
 
   // WebContentsDelegate implementation.
@@ -25,6 +29,11 @@ class WebIntentInlineDispositionDelegate : public content::WebContentsDelegate {
   virtual content::WebContents* OpenURLFromTab(
       content::WebContents* source,
       const content::OpenURLParams& params) OVERRIDE;
+  virtual void LoadingStateChanged(content::WebContents* source) OVERRIDE;
+
+ private:
+  // Picker to notify when loading state changes. Weak pointer.
+  WebIntentPicker* picker_;
 };
 
 #endif  // CHROME_BROWSER_UI_INTENTS_WEB_INTENT_INLINE_DISPOSITION_DELEGATE_H_