DevTools: Make StepInto work across script boundaries and Blink process tasks.

Source/core/inspector/InspectorInstrumentation.idl

Index: Source/core/inspector/InspectorInstrumentation.idl
diff --git a/Source/core/inspector/InspectorInstrumentation.idl b/Source/core/inspector/InspectorInstrumentation.idl
index 96c22ce4c455ff752b2cd61d2b1b867e840ce166..6a684c4dbee322bfe5763618e7b02197d2884172 100644
--- a/Source/core/inspector/InspectorInstrumentation.idl
+++ b/Source/core/inspector/InspectorInstrumentation.idl
@@ -145,7 +145,7 @@ interface InspectorInstrumentation {
     [DOMDebugger, Debugger, Timeline, Inline=FastReturn]
     void didRemoveTimer([Keep] ExecutionContext*, int timerId);
 
-    [Timeline, Inline=FastReturn]
+    [Debugger, Timeline, Inline=FastReturn]
     InspectorInstrumentationCookie willCallFunction([Keep] ExecutionContext*, int scriptId, const String& scriptName, int scriptLine);
 
     [Timeline, Inline=FastReturn]
@@ -205,7 +205,7 @@ interface InspectorInstrumentation {
     [Debugger, Inline=FastReturn]
     void didPerformExecutionContextTask(ExecutionContext*);
 
-    [Timeline, Inline=FastReturn]
+    [Debugger, Timeline, Inline=FastReturn]
     InspectorInstrumentationCookie willEvaluateScript([Keep] LocalFrame*, const String& url, int lineNumber);
 
     [Timeline, Inline=FastReturn]
@@ -452,9 +452,6 @@ interface InspectorInstrumentation {
     [DOM, Inline=FastReturn]
     void pseudoElementDestroyed([Keep] PseudoElement*);
 
-    [DOMDebugger, Inline=FastReturn]
-    void willExecuteCustomElementCallback([Keep] Element*);
-
     [Debugger, Inline=FastReturn]
     int traceAsyncOperationStarting([Keep] ExecutionContext*, const String& operationName);