Remove unnecessary "extensions::" prefix in guest_view/web_view/app_view directories.

chrome/browser/guest_view/web_view/web_view_find_helper.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/guest_view/web_view/web_view_find_helper.h"
 
 #include <utility>
 
 #include "chrome/browser/extensions/api/web_view/web_view_internal_api.h"
 #include "chrome/browser/guest_view/web_view/web_view_constants.h"
@@ skipping 70 matching lines @@
   // Erase the first find request's map entry to free the
   // WebViewInternalFindFunction
   // object.
   find_info_map_.erase(session_request_id);
 }
 
 void WebViewFindHelper::Find(
     content::WebContents* guest_web_contents,
     const base::string16& search_text,
     const blink::WebFindOptions& options,
-    scoped_refptr<extensions::WebViewInternalFindFunction> find_function) {
+    scoped_refptr<WebViewInternalFindFunction> find_function) {
   // Need a new request_id for each new find request.
   ++current_find_request_id_;
 
   // Stores the find request information by request_id so that its callback
   // function can be called when the find results are available.
   std::pair<FindInfoMap::iterator, bool> insert_result =
       find_info_map_.insert(std::make_pair(
           current_find_request_id_,
           linked_ptr<
               WebViewFindHelper::FindInfo>(new WebViewFindHelper::FindInfo(
@@ skipping 132 matching lines @@
 void WebViewFindHelper::FindUpdateEvent::PrepareResults(
     base::DictionaryValue* results) {
   results->SetString(webview::kFindSearchText, search_text_);
   find_results_.PrepareResults(results);
 }
 
 WebViewFindHelper::FindInfo::FindInfo(
     int request_id,
     const base::string16& search_text,
     const blink::WebFindOptions& options,
-    scoped_refptr<extensions::WebViewInternalFindFunction> find_function)
+    scoped_refptr<WebViewInternalFindFunction> find_function)
     : request_id_(request_id),
       search_text_(search_text),
       options_(options),
       find_function_(find_function),
       replied_(false),
       weak_ptr_factory_(this) {
 }
 
 WebViewFindHelper::FindInfo::~FindInfo() {
 }
@@ skipping 18 matching lines @@
   base::DictionaryValue results;
   find_results_.PrepareResults(&results);
   results.SetBoolean(webview::kFindCanceled, canceled);
 
   // Call the callback.
   find_function_->SetResult(results.DeepCopy());
   find_function_->SendResponse(true);
 }
 
 }  // namespace extensions