Disable screenshot uploading if there has been user input.

chrome/browser/chromeos/policy/remote_commands/device_command_screenshot_job.cc

Index: chrome/browser/chromeos/policy/remote_commands/device_command_screenshot_job.cc
diff --git a/chrome/browser/chromeos/policy/remote_commands/device_command_screenshot_job.cc b/chrome/browser/chromeos/policy/remote_commands/device_command_screenshot_job.cc
index bcb1ffc7ab3bad070152805a0f1c11f72092d430..11eb49eb70113c6b5f3a412fe72d1aa158535667 100644
--- a/chrome/browser/chromeos/policy/remote_commands/device_command_screenshot_job.cc
+++ b/chrome/browser/chromeos/policy/remote_commands/device_command_screenshot_job.cc
@@ -190,8 +190,13 @@ void DeviceCommandScreenshotJob::RunImpl(
   succeeded_callback_ = succeeded_callback;
   failed_callback_ = failed_callback;
 
-  upload_job_ = screenshot_delegate_->CreateUploadJob(upload_url_, this);
-  DCHECK(upload_job_);
+  // Fail if the delegate says screenshots are not allowed in this session.
+  if (!screenshot_delegate_->IsScreenshotAllowed()) {
+    base::ThreadTaskRunnerHandle::Get()->PostTask(
+        FROM_HERE,
+        base::Bind(failed_callback_, base::Passed(make_scoped_ptr(
+                                         new Payload(FAILURE_USER_INPUT)))));
+  }
 
   aura::Window::Windows root_windows = ash::Shell::GetAllRootWindows();
 
@@ -203,6 +208,9 @@ void DeviceCommandScreenshotJob::RunImpl(
                                          FAILURE_SCREENSHOT_ACQUISITION)))));
   }
 
+  upload_job_ = screenshot_delegate_->CreateUploadJob(upload_url_, this);
+  DCHECK(upload_job_);
+
   // Post tasks to the sequenced worker pool for taking screenshots on each
   // attached screen.
   num_pending_screenshots_ = root_windows.size();