Add a gyp flag to enable dcheck by default in release without

content/browser/renderer_host/render_view_host_unittest.cc

 // Copyright (c) 2011 The Chromium 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 "content/browser/renderer_host/test_render_view_host.h"
 #include "content/browser/tab_contents/navigation_controller.h"
 #include "content/browser/tab_contents/navigation_entry.h"
 #include "content/browser/tab_contents/test_tab_contents.h"
 #include "content/common/page_transition_types.h"
 #include "content/common/view_messages.h"
@@ skipping 125 matching lines @@
 
   GURL javascript_url = GURL("javascript:alert('I am a bookmarklet')");
   drop_data.url = javascript_url;
   drop_data.html_base_url = http_url;
   rvh()->TestOnMsgStartDragging(drop_data);
   EXPECT_EQ(javascript_url, view_delegate.drag_url());
   EXPECT_EQ(http_url, view_delegate.html_base_url());
 }
 
 // The test that follow trigger DCHECKS in debug build.
-#if defined(NDEBUG)
+#if defined(NDEBUG) && !defined(DCHECK_ALWAYS_ON)
 
 // Test that when we fail to de-serialize a message, RenderViewHost calls the
 // ReceivedBadMessage() handler.
 TEST_F(RenderViewHostTest, BadMessageHandlerRenderViewHost) {
   EXPECT_EQ(0, process()->bad_msg_count());
   // craft an incorrect ViewHostMsg_UpdateTargetURL message. The real one has
   // two payload items but the one we construct has none.
   IPC::Message message(0, ViewHostMsg_UpdateTargetURL::ID,
                        IPC::Message::PRIORITY_NORMAL);
   rvh()->TestOnMessageReceived(message);
@@ skipping 18 matching lines @@
   // ViewHostMsg_HandleInputEvent_ACK is defined taking 0 params but
   // the code actually expects it to have at least one int para, this this
   // bogus message will not fail at de-serialization but should fail in
   // OnMsgInputEventAck() processing.
   IPC::Message message(0, ViewHostMsg_HandleInputEvent_ACK::ID,
                        IPC::Message::PRIORITY_NORMAL);
   rvh()->TestOnMessageReceived(message);
   EXPECT_EQ(1, process()->bad_msg_count());
 }
 
-#endif  // NDEBUG
+#endif