Android: Use a ResourceThrottle to intercept GET downloads.

chrome/browser/android/chrome_web_contents_delegate_android.cc

 // Copyright (c) 2012 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/android/chrome_web_contents_delegate_android.h"
 
 #include "base/android/jni_android.h"
 #include "base/metrics/histogram.h"
 #include "base/string_util.h"
 #include "chrome/browser/file_select_helper.h"
 #include "chrome/browser/google/google_url_tracker.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/app_modal_dialogs/javascript_dialog_manager.h"
 #include "chrome/browser/ui/find_bar/find_match_rects_details.h"
 #include "chrome/browser/ui/find_bar/find_notification_details.h"
 #include "chrome/browser/ui/find_bar/find_tab_helper.h"
 #include "chrome/browser/ui/media_stream_infobar_delegate.h"
 #include "chrome/common/chrome_notification_types.h"
-#include "content/public/browser/android/download_controller_android.h"
 #include "content/public/browser/navigation_entry.h"
 #include "content/public/browser/notification_details.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/notification_source.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/common/file_chooser_params.h"
 #include "content/public/common/page_transition_types.h"
 #include "jni/ChromeWebContentsDelegateAndroid_jni.h"
-#include "net/http/http_request_headers.h"
 #include "ui/gfx/rect.h"
 #include "ui/gfx/rect_f.h"
 
 #if defined(ENABLE_PLUGINS)
 #include "chrome/browser/pepper_broker_infobar_delegate.h"
 #endif
 
 using base::android::ScopedJavaLocalRef;
 using content::FileChooserParams;
 using content::NavigationController;
@@ skipping 182 matching lines @@
       env,
       obj.obj(),
       details_object.obj());
 }
 
 content::JavaScriptDialogManager*
 ChromeWebContentsDelegateAndroid::GetJavaScriptDialogManager() {
   return GetJavaScriptDialogManagerInstance();
 }
 
-void ChromeWebContentsDelegateAndroid::CanDownload(
-    content::RenderViewHost* source,
-    int request_id,
-    const std::string& request_method,
-    const base::Callback<void(bool)>& callback) {
-  if (request_method == net::HttpRequestHeaders::kGetMethod) {
-    content::DownloadControllerAndroid::Get()->CreateGETDownload(
-        source, request_id);
-    callback.Run(false);
-  }
-  // DownloadControllerAndroid::OnPostDownloadStarted() is called for the
-  // started download by the default DownloadUIController::Delegate
-  // implementation.
-  callback.Run(true);
-}
-
 void ChromeWebContentsDelegateAndroid::DidNavigateToPendingEntry(
     content::WebContents* source) {
   navigation_start_time_ = base::TimeTicks::Now();
 }
 
 void ChromeWebContentsDelegateAndroid::DidNavigateMainFramePostCommit(
     content::WebContents* source) {
   if (!IsActiveNavigationGoogleSearch(source))
     return;
 
@@ skipping 22 matching lines @@
         web_contents, url, plugin_path, callback);
     return true;
 #else
     return false;
 #endif
 }
 
 
 }  // namespace android
 }  // namespace chrome