[devtools] Add DOMSnapshot domain for dom+layout+style snapshots.

headless/public/headless_devtools_client.h

 // Copyright 2016 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 HEADLESS_PUBLIC_HEADLESS_DEVTOOLS_CLIENT_H_
 #define HEADLESS_PUBLIC_HEADLESS_DEVTOOLS_CLIENT_H_
 
 #include <memory>
 
 #include "base/macros.h"
@@ skipping 30 matching lines @@
 }
 namespace device_orientation {
 class Domain;
 }
 namespace dom {
 class Domain;
 }
 namespace dom_debugger {
 class Domain;
 }
+namespace dom_snapshot {
+class Domain;
+}
 namespace dom_storage {
 class Domain;
 }
 namespace emulation {
 class Domain;
 }
 namespace heap_profiler {
 class Domain;
 }
 namespace indexeddb {
@@ skipping 59 matching lines @@
   virtual application_cache::Domain* GetApplicationCache() = 0;
   virtual browser::Domain* GetBrowser() = 0;
   virtual cache_storage::Domain* GetCacheStorage() = 0;
   virtual console::Domain* GetConsole() = 0;
   virtual css::Domain* GetCSS() = 0;
   virtual database::Domain* GetDatabase() = 0;
   virtual debugger::Domain* GetDebugger() = 0;
   virtual device_orientation::Domain* GetDeviceOrientation() = 0;
   virtual dom::Domain* GetDOM() = 0;
   virtual dom_debugger::Domain* GetDOMDebugger() = 0;
+  virtual dom_snapshot::Domain* GetDOMSnapshot() = 0;
   virtual dom_storage::Domain* GetDOMStorage() = 0;
   virtual emulation::Domain* GetEmulation() = 0;
   virtual heap_profiler::Domain* GetHeapProfiler() = 0;
   virtual indexeddb::Domain* GetIndexedDB() = 0;
   virtual input::Domain* GetInput() = 0;
   virtual inspector::Domain* GetInspector() = 0;
   virtual io::Domain* GetIO() = 0;
   virtual layer_tree::Domain* GetLayerTree() = 0;
   virtual log::Domain* GetLog() = 0;
   virtual memory::Domain* GetMemory() = 0;
@@ skipping 37 matching lines @@
   friend class HeadlessDevToolsClientImpl;
 
   HeadlessDevToolsClient() {}
 
   DISALLOW_COPY_AND_ASSIGN(HeadlessDevToolsClient);
 };
 
 }  // namespace headless
 
 #endif  // HEADLESS_PUBLIC_HEADLESS_DEVTOOLS_CLIENT_H_