Make TabCapture requests use the target render process and render view id's for UI permissions.

chrome/browser/media/media_stream_devices_controller.cc

Index: chrome/browser/media/media_stream_devices_controller.cc
diff --git a/chrome/browser/media/media_stream_devices_controller.cc b/chrome/browser/media/media_stream_devices_controller.cc
index f0e3a3f4a82ffd2e4e5bf4e58f45f3ffd5927b0c..f362d669a827ec8f992b738445fde166462e4a91 100644
--- a/chrome/browser/media/media_stream_devices_controller.cc
+++ b/chrome/browser/media/media_stream_devices_controller.cc
@@ -4,6 +4,7 @@
 
 #include "chrome/browser/media/media_stream_devices_controller.h"
 
+#include "base/stringprintf.h"
 #include "base/values.h"
 #include "chrome/browser/content_settings/content_settings_provider.h"
 #include "chrome/browser/content_settings/host_content_settings_map.h"
@@ -56,7 +57,30 @@ MediaStreamDevicesController::~MediaStreamDevicesController() {}
 bool MediaStreamDevicesController::DismissInfoBarAndTakeActionOnSettings() {
   if (request_.audio_type == content::MEDIA_TAB_AUDIO_CAPTURE ||
       request_.video_type == content::MEDIA_TAB_VIDEO_CAPTURE) {
-    Accept(false);
+    extensions::TabCaptureRegistry* registry =
+        extensions::TabCaptureRegistryFactory::GetForProfile(profile_);
+
+    std::string device_id = base::StringPrintf(
+        "%i:%i", request_.render_process_id, request_.render_view_id);

[no longer working on chromium, 2012/12/05 17:38:37]

this code looks a bit odd, can you consider changeing the type to 
typedef std::map<std::pair<int, int>,  TabCaptureRequest>
DeviceCaptureRequestMap;

+
+    if (!registry->VerifyRequest(device_id)) {
+      Deny();
+    } else {
+      content::MediaStreamDevices devices;
+
+      if (request_.video_type == content::MEDIA_TAB_VIDEO_CAPTURE) {
+        devices.push_back(content::MediaStreamDevice(
+            content::MEDIA_TAB_VIDEO_CAPTURE, "", ""));
+      }
+      if (request_.audio_type == content::MEDIA_TAB_AUDIO_CAPTURE) {
+        devices.push_back(content::MediaStreamDevice(
+            content::MEDIA_TAB_AUDIO_CAPTURE, "", ""));
+      }
+
+      callback_.Run(devices);
+    }
+
+    return true;
   }
 
   // Deny the request if the security origin is empty, this happens with