Extensions: suspend extension's scripts when V8 is paused

extensions/renderer/script_injection_callback.h

Index: extensions/renderer/script_injection_callback.h
diff --git a/extensions/renderer/script_injection_callback.h b/extensions/renderer/script_injection_callback.h
new file mode 100644
index 0000000000000000000000000000000000000000..a44416b947657848b61fdc231c90c4b11e7a8750
--- /dev/null
+++ b/extensions/renderer/script_injection_callback.h
@@ -0,0 +1,42 @@
+// Copyright 2015 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 EXTENSIONS_RENDERER_SCRIPT_INJECTION_CALLBACK_H_
+#define EXTENSIONS_RENDERER_SCRIPT_INJECTION_CALLBACK_H_
+
+#include "base/macros.h"
+#include "third_party/WebKit/public/web/WebScriptExecutionCallback.h"
+#include "v8/include/v8.h"
+
+namespace blink {
+class WebLocalFrame;
+template<typename T> class WebVector;
+}
+
+namespace extensions {
+class ScriptInjection;
+
+// A script injection callback which contains completed method

[Devlin, 2015/03/03 23:47:03]

Let's instead say:
// A wrapper around a callback to notify a script injection when injection
completes.
// This class manages its own lifetime.

[kozy, 2015/03/04 08:55:08]

Done.

+// which is guaranteed to be called with result.
+// Object of this class self-destroy after completed call.
+class ScriptInjectionCallback : public blink::WebScriptExecutionCallback {
+ public:
+  ScriptInjectionCallback(ScriptInjection* injection,
+                          blink::WebLocalFrame* web_frame);
+  ~ScriptInjectionCallback() override;
+
+  void completed(
+      const blink::WebVector<v8::Local<v8::Value> >& result) override;
+
+ private:
+  ScriptInjection* injection_;
+
+  blink::WebLocalFrame* web_frame_;
+
+  DISALLOW_COPY_AND_ASSIGN(ScriptInjectionCallback);
+};
+
+}  // namespace extensions
+
+#endif  // EXTENSIONS_RENDERER_SCRIPT_INJECTION_CALLBACK_H_