Move most of ChromeV8Context to a base ScriptContext

chrome/renderer/extensions/user_script_slave.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/renderer/extensions/user_script_slave.h"
 
 #include <map>
 
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/memory/shared_memory.h"
 #include "base/metrics/histogram.h"
 #include "base/pickle.h"
 #include "base/strings/stringprintf.h"
 #include "base/timer/elapsed_timer.h"
 #include "chrome/common/url_constants.h"
 #include "chrome/renderer/chrome_render_process_observer.h"
 #include "chrome/renderer/extensions/dom_activity_logger.h"
 #include "chrome/renderer/extensions/extension_groups.h"
 #include "chrome/renderer/isolated_world_ids.h"
 #include "content/public/renderer/render_thread.h"
 #include "content/public/renderer/render_view.h"
 #include "extensions/common/extension.h"
 #include "extensions/common/extension_messages.h"
 #include "extensions/common/extension_set.h"
 #include "extensions/common/manifest_handlers/csp_info.h"
 #include "extensions/common/permissions/permissions_data.h"
+#include "extensions/renderer/script_context.h"
 #include "grit/renderer_resources.h"
 #include "third_party/WebKit/public/platform/WebURLRequest.h"
 #include "third_party/WebKit/public/platform/WebVector.h"
-#include "third_party/WebKit/public/web/WebDataSource.h"
 #include "third_party/WebKit/public/web/WebDocument.h"
 #include "third_party/WebKit/public/web/WebFrame.h"
 #include "third_party/WebKit/public/web/WebSecurityOrigin.h"
 #include "third_party/WebKit/public/web/WebSecurityPolicy.h"
 #include "third_party/WebKit/public/web/WebView.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "url/gurl.h"
 
 using blink::WebFrame;
 using blink::WebSecurityOrigin;
@@ skipping 130 matching lines @@
     if (only_inject_incognito && !script->is_incognito_enabled()) {
       // This script shouldn't run in an incognito tab.
       delete script;
       scripts_.pop_back();
     }
   }
 
   return true;
 }
 
-GURL UserScriptSlave::GetDataSourceURLForFrame(const WebFrame* frame) {
-  // Normally we would use frame->document().url() to determine the document's
-  // URL, but to decide whether to inject a content script, we use the URL from
-  // the data source. This "quirk" helps prevents content scripts from
-  // inadvertently adding DOM elements to the compose iframe in Gmail because
-  // the compose iframe's dataSource URL is about:blank, but the document URL
-  // changes to match the parent document after Gmail document.writes into
-  // it to create the editor.
-  // http://code.google.com/p/chromium/issues/detail?id=86742
-  blink::WebDataSource* data_source = frame->provisionalDataSource() ?
-      frame->provisionalDataSource() : frame->dataSource();
-  CHECK(data_source);
-  return GURL(data_source->request().url());
-}
-
 void UserScriptSlave::InjectScripts(WebFrame* frame,
                                     UserScript::RunLocation location) {
-  GURL data_source_url = GetDataSourceURLForFrame(frame);
+  GURL data_source_url = ScriptContext::GetDataSourceURLForFrame(frame);
   if (data_source_url.is_empty())
     return;
 
   if (frame->isViewSourceModeEnabled())
     data_source_url = GURL(content::kViewSourceScheme + std::string(":") +
                            data_source_url.spec());
 
   base::ElapsedTimer timer;
   int num_css = 0;
   int num_scripts = 0;
@@ skipping 85 matching lines @@
 
   // Notify the browser if any extensions are now executing scripts.
   if (!extensions_executing_scripts.empty()) {
     blink::WebFrame* top_frame = frame->top();
     content::RenderView* render_view =
         content::RenderView::FromWebView(top_frame->view());
     render_view->Send(new ExtensionHostMsg_ContentScriptsExecuting(
         render_view->GetRoutingID(),
         extensions_executing_scripts,
         render_view->GetPageId(),
-        GetDataSourceURLForFrame(top_frame)));
+        ScriptContext::GetDataSourceURLForFrame(top_frame)));
   }
 
   // Log debug info.
   if (location == UserScript::DOCUMENT_START) {
     UMA_HISTOGRAM_COUNTS_100("Extensions.InjectStart_CssCount", num_css);
     UMA_HISTOGRAM_COUNTS_100("Extensions.InjectStart_ScriptCount", num_scripts);
     if (num_css || num_scripts)
       UMA_HISTOGRAM_TIMES("Extensions.InjectStart_Time", timer.Elapsed());
   } else if (location == UserScript::DOCUMENT_END) {
     UMA_HISTOGRAM_COUNTS_100("Extensions.InjectEnd_ScriptCount", num_scripts);
     if (num_scripts)
       UMA_HISTOGRAM_TIMES("Extensions.InjectEnd_Time", timer.Elapsed());
   } else if (location == UserScript::DOCUMENT_IDLE) {
     UMA_HISTOGRAM_COUNTS_100("Extensions.InjectIdle_ScriptCount", num_scripts);
     if (num_scripts)
       UMA_HISTOGRAM_TIMES("Extensions.InjectIdle_Time", timer.Elapsed());
   } else {
     NOTREACHED();
   }
 }
 
 }  // namespace extensions