aw: Use comparison DCHECKs where appropriate

android_webview/native/aw_contents.cc

 // Copyright 2012 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 "android_webview/native/aw_contents.h"
 
 #include <limits>
 
 #include "android_webview/browser/aw_browser_context.h"
 #include "android_webview/browser/aw_browser_main_parts.h"
@@ skipping 249 matching lines @@
 void AwContents::SetAwAutofillClient(jobject client) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   JNIEnv* env = AttachCurrentThread();
   ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
   if (obj.is_null())
     return;
   Java_AwContents_setAwAutofillClient(env, obj.obj(), client);
 }
 
 AwContents::~AwContents() {
-  DCHECK(AwContents::FromWebContents(web_contents_.get()) == this);
+  DCHECK_EQ(this, AwContents::FromWebContents(web_contents_.get()));
   DCHECK(!hardware_renderer_.get());
   web_contents_->RemoveUserData(kAwContentsUserDataKey);
   if (find_helper_.get())
     find_helper_->SetListener(NULL);
   if (icon_helper_.get())
     icon_helper_->SetListener(NULL);
   base::subtle::NoBarrier_AtomicIncrement(&g_instance_count, -1);
   // When the last WebView is destroyed free all discardable memory allocated by
   // Chromium, because the app process may continue to run for a long time
   // without ever using another WebView.
@@ skipping 855 matching lines @@
                             jboolean visible) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   browser_view_renderer_.TrimMemory(level, visible);
 }
 
 void SetShouldDownloadFavicons(JNIEnv* env, jclass jclazz) {
   g_should_download_favicons = true;
 }
 
 }  // namespace android_webview