Remove grab-bag includes of v8.h from everywhere.

src/extensions/trigger-failure-extension.cc

 // Copyright 2013 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/extensions/trigger-failure-extension.h"
-#include "src/v8.h"
+
+#include "src/base/logging.h"
+#include "src/checks.h"
 
 namespace v8 {
 namespace internal {
 
 
 const char* const TriggerFailureExtension::kSource =
     "native function triggerCheckFalse();"
     "native function triggerAssertFalse();"
     "native function triggerSlowAssertFalse();";
 
@@ skipping 30 matching lines @@
 }
 
 
 void TriggerFailureExtension::TriggerSlowAssertFalse(
     const v8::FunctionCallbackInfo<v8::Value>& args) {
   SLOW_DCHECK(false);
 }
 
 }  // namespace internal
 }  // namespace v8