Limit PDF helper extension to print preview only

content/public/test/browser_test_utils.h

 // 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.
 
 #ifndef CONTENT_PUBLIC_TEST_BROWSER_TEST_UTILS_H_
 #define CONTENT_PUBLIC_TEST_BROWSER_TEST_UTILS_H_
 
 #include <queue>
 #include <string>
 #include <vector>
 
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/process/process.h"
 #include "base/strings/string16.h"
 #include "build/build_config.h"
 #include "cc/output/compositor_frame.h"
 #include "content/public/browser/browser_message_filter.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "content/public/browser/render_process_host_observer.h"
+#include "content/public/browser/web_contents_delegate.h"
 #include "content/public/browser/web_contents_observer.h"
 #include "content/public/common/page_type.h"
 #include "ipc/message_filter.h"
 #include "third_party/WebKit/public/web/WebInputEvent.h"
 #include "ui/accessibility/ax_node_data.h"
 #include "ui/accessibility/ax_tree_update.h"
 #include "ui/events/keycodes/dom/dom_code.h"
 #include "ui/events/keycodes/dom/dom_key.h"
 #include "ui/events/keycodes/keyboard_codes.h"
 #include "url/gurl.h"
@@ skipping 615 matching lines @@
   bool handled_navigation_;
   scoped_refptr<MessageLoopRunner> will_start_loop_runner_;
   scoped_refptr<MessageLoopRunner> will_process_response_loop_runner_;
   scoped_refptr<MessageLoopRunner> did_finish_loop_runner_;
 
   base::WeakPtrFactory<TestNavigationManager> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(TestNavigationManager);
 };
 
+// A WebContentsDelegate that catches messages sent to the console.
+class ConsoleObserverDelegate : public WebContentsDelegate {
+ public:
+  ConsoleObserverDelegate(WebContents* web_contents, const std::string& filter);
+  ~ConsoleObserverDelegate() override;
+
+  // WebContentsDelegate method:
+  bool AddMessageToConsole(WebContents* source,
+                           int32_t level,
+                           const base::string16& message,
+                           int32_t line_no,
+                           const base::string16& source_id) override;
+
+  // Returns the most recent message sent to the console.
+  std::string message() { return message_; }
+
+  // Waits for the next message captured by the filter to be sent to the
+  // console.
+  void Wait();
+
+ private:
+  WebContents* web_contents_;
+  std::string filter_;
+  std::string message_;
+
+  // The MessageLoopRunner used to spin the message loop.
+  scoped_refptr<MessageLoopRunner> message_loop_runner_;
+
+  DISALLOW_COPY_AND_ASSIGN(ConsoleObserverDelegate);
+};
+
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_TEST_BROWSER_TEST_UTILS_H_