Introduce a new 'all_frames' property to content scripts and

chrome/renderer/user_script_slave.cc

 // Copyright (c) 2009 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/user_script_slave.h"
 
 #include "app/resource_bundle.h"
 #include "base/histogram.h"
 #include "base/logging.h"
 #include "base/perftimer.h"
@@ skipping 123 matching lines @@
   if (frame_url.host() == GURL(Extension::kGalleryBrowseUrl).host())
     return true;
 
   PerfTimer timer;
   int num_css = 0;
   int num_scripts = 0;
 
   for (size_t i = 0; i < scripts_.size(); ++i) {
     std::vector<WebScriptSource> sources;
     UserScript* script = scripts_[i];
+
+    if (frame->parent() && !script->match_all_frames())
+      continue;  // Only match subframes if the script declared it wanted to.
+
     if (!script->MatchesUrl(frame->url()))
       continue;  // This frame doesn't match the script url pattern, skip it.
 
     // CSS files are always injected on document start before js scripts.
     if (location == UserScript::DOCUMENT_START) {
       num_css += script->css_scripts().size();
       for (size_t j = 0; j < script->css_scripts().size(); ++j) {
         PerfTimer insert_timer;
         UserScript::File& file = script->css_scripts()[j];
         frame->insertStyleText(
@@ skipping 58 matching lines @@
     if (num_scripts)
       UMA_HISTOGRAM_TIMES("Extensions.InjectIdle_Time", timer.Elapsed());
   } else {
     NOTREACHED();
   }
 
   LOG(INFO) << "Injected " << num_scripts << " scripts and " << num_css <<
       "css files into " << frame->url().spec().data();
   return true;
 }