Fix Android tab navigation "stretch" regression.

content/browser/web_contents/web_contents_android.h

 // Copyright 2013 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.
 
 #ifndef CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_ANDROID_H_
 #define CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_ANDROID_H_
 
 #include <jni.h>
 
 #include <memory>
@@ skipping 153 matching lines @@
 
   base::android::ScopedJavaLocalRef<jstring> GetEncoding(
       JNIEnv* env,
       const base::android::JavaParamRef<jobject>& obj) const;
 
   void SetOverscrollRefreshHandler(
       JNIEnv* env,
       const base::android::JavaParamRef<jobject>& obj,
       const base::android::JavaParamRef<jobject>& overscroll_refresh_handler);
 
-  // Relay the access from Java layer to GetScaledContentBitmap through JNI.
+  // Relay the access from Java layer to RWHV::CopyFromSurface() through JNI.
   void GetContentBitmap(JNIEnv* env,
                         const base::android::JavaParamRef<jobject>& obj,
-                        const base::android::JavaParamRef<jobject>& jcallback,
-                        const base::android::JavaParamRef<jobject>& color_type,
-                        jfloat scale,
-                        jfloat x,
-                        jfloat y,
-                        jfloat width,
-                        jfloat height);
+                        jint width,
+                        jint height,
+                        const base::android::JavaParamRef<jobject>& jcallback);
 
   void ReloadLoFiImages(JNIEnv* env,
                         const base::android::JavaParamRef<jobject>& obj);
 
   int DownloadImage(JNIEnv* env,
                     const base::android::JavaParamRef<jobject>& obj,
                     const base::android::JavaParamRef<jstring>& url,
                     jboolean is_fav_icon,
                     jint max_bitmap_size,
                     jboolean bypass_cache,
@@ skipping 31 matching lines @@
   base::android::ScopedJavaGlobalRef<jobject> obj_;
 
   base::WeakPtrFactory<WebContentsAndroid> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(WebContentsAndroid);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_ANDROID_H_