DevTools: split protocol Dispatcher into Backend interface and the dispatcher itself.

third_party/WebKit/Source/core/inspector/InspectorCSSAgent.h

Index: third_party/WebKit/Source/core/inspector/InspectorCSSAgent.h
diff --git a/third_party/WebKit/Source/core/inspector/InspectorCSSAgent.h b/third_party/WebKit/Source/core/inspector/InspectorCSSAgent.h
index 913249b105a2ac0ca8cb50c5da7c6105002603c8..04c4959577e4908894cbee37b29ba7c1a5f53827 100644
--- a/third_party/WebKit/Source/core/inspector/InspectorCSSAgent.h
+++ b/third_party/WebKit/Source/core/inspector/InspectorCSSAgent.h
@@ -61,7 +61,7 @@ class LayoutObject;
 class CORE_EXPORT InspectorCSSAgent final
     : public InspectorBaseAgent<InspectorCSSAgent, protocol::Frontend::CSS>
     , public InspectorDOMAgent::DOMListener
-    , public protocol::Dispatcher::CSSCommandHandler
+    , public protocol::Backend::CSS
     , public InspectorStyleSheetBase::Listener {
     WTF_MAKE_NONCOPYABLE(InspectorCSSAgent);
     WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(InspectorCSSAgent);