Move offline related functions from Tab to OfflinePageUtils

chrome/browser/android/tab_android.h

Index: chrome/browser/android/tab_android.h
diff --git a/chrome/browser/android/tab_android.h b/chrome/browser/android/tab_android.h
index dea06a60d1c4ac2817d8249ec8d09f9c38b855a1..1e3e4a8a46e4f76f66f85578f7199efa3a884d57 100644
--- a/chrome/browser/android/tab_android.h
+++ b/chrome/browser/android/tab_android.h
@@ -117,8 +117,6 @@ class TabAndroid : public CoreTabHelperDelegate,
 
   bool HasPrerenderedUrl(GURL gurl);
 
-  void ShowOfflinePages();
-
   // Overridden from CoreTabHelperDelegate:
   void SwapTabContents(content::WebContents* old_contents,
                        content::WebContents* new_contents,
@@ -212,16 +210,6 @@ class TabAndroid : public CoreTabHelperDelegate,
                       const base::android::JavaParamRef<jobject>& obj,
                       jboolean only_editable);
 
-  jboolean HasOfflineCopy(JNIEnv* env,
-                          const base::android::JavaParamRef<jobject>& obj);
-
-  jboolean IsOfflinePage(JNIEnv* env,
-                         const base::android::JavaParamRef<jobject>& obj);
-
-  base::android::ScopedJavaLocalRef<jobject> GetOfflinePage(
-      JNIEnv* env,
-      const base::android::JavaParamRef<jobject>& obj);
-
   void SetInterceptNavigationDelegate(
       JNIEnv* env,
       const base::android::JavaParamRef<jobject>& obj,