[debug] Partial reland of debug API removal

src/debug/debug.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/debug/debug.h"
 
 #include <memory>
 
 #include "src/api.h"
 #include "src/arguments.h"
@@ skipping 1759 matching lines @@
   // Process debug event.
   ProcessDebugEvent(v8::Break, Handle<JSObject>::cast(event_data),
                     auto_continue);
 }
 
 
 void Debug::OnCompileError(Handle<Script> script) {
   ProcessCompileEvent(v8::CompileError, script);
 }
 
-void Debug::OnBeforeCompile(Handle<Script> script) {
-  ProcessCompileEvent(v8::BeforeCompile, script);
-}
 
 // Handle debugger actions when a new script is compiled.
 void Debug::OnAfterCompile(Handle<Script> script) {
   ProcessCompileEvent(v8::AfterCompile, script);
 }
 
 void Debug::OnAsyncTaskEvent(Handle<String> type, Handle<Object> id,
                              Handle<String> name) {
   DCHECK(id->IsNumber());
   if (in_debug_scope() || ignore_events()) return;
@@ skipping 134 matching lines @@
   // while dispatching message handler callbacks.
   PostponeInterruptsScope no_interrupts(isolate_);
   DCHECK(is_active_);
   HandleScope scope(isolate_);
   // Process the individual events.
   bool sendEventMessage = false;
   switch (event) {
     case v8::Break:
       sendEventMessage = !auto_continue;
       break;
-    case v8::NewFunction:
-    case v8::BeforeCompile:
     case v8::CompileError:
     case v8::AsyncTaskEvent:
       break;
     case v8::Exception:
     case v8::AfterCompile:
       sendEventMessage = true;
       break;
   }
 
   // The debug command interrupt flag might have been set when the command was
@@ skipping 565 matching lines @@
   logger_->DebugEvent("Put", message.text());
 }
 
 void LockingCommandMessageQueue::Clear() {
   base::LockGuard<base::Mutex> lock_guard(&mutex_);
   queue_.Clear();
 }
 
 }  // namespace internal
 }  // namespace v8