Split ScriptStreamer and ScriptStreamerImpl, preparing for unit testing

third_party/WebKit/Source/bindings/core/v8/ScriptStreamerThread.h

Index: third_party/WebKit/Source/bindings/core/v8/ScriptStreamerThread.h
diff --git a/third_party/WebKit/Source/bindings/core/v8/ScriptStreamerThread.h b/third_party/WebKit/Source/bindings/core/v8/ScriptStreamerThread.h
index b600ca152727eca7e198dc00b72e09e5547414c7..3a1595813fc975f2946810855e78bd99941e8a0f 100644
--- a/third_party/WebKit/Source/bindings/core/v8/ScriptStreamerThread.h
+++ b/third_party/WebKit/Source/bindings/core/v8/ScriptStreamerThread.h
@@ -15,7 +15,7 @@
 
 namespace blink {
 
-class ScriptStreamer;
+class ScriptStreamerImpl;
 
 // A singleton thread for running background tasks for script streaming.
 class CORE_EXPORT ScriptStreamerThread {
@@ -37,7 +37,7 @@ class CORE_EXPORT ScriptStreamerThread {
 
   static void RunScriptStreamingTask(
       std::unique_ptr<v8::ScriptCompiler::ScriptStreamingTask>,
-      ScriptStreamer*);
+      ScriptStreamerImpl*);
 
  private:
   ScriptStreamerThread() : running_task_(false) {}