Unify Android Webview and Chrome's fling

android_webview/native/aw_contents.h

 // Copyright (c) 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.
 
 #ifndef ANDROID_WEBVIEW_NATIVE_AW_CONTENTS_H_
 #define ANDROID_WEBVIEW_NATIVE_AW_CONTENTS_H_
 
 #include <jni.h>
 #include <list>
 #include <string>
@@ skipping 100 matching lines @@
   void SetViewVisibility(JNIEnv* env, jobject obj, bool visible);
   void SetWindowVisibility(JNIEnv* env, jobject obj, bool visible);
   void SetIsPaused(JNIEnv* env, jobject obj, bool paused);
   void OnAttachedToWindow(JNIEnv* env, jobject obj, int w, int h);
   void OnDetachedFromWindow(JNIEnv* env, jobject obj);
   base::android::ScopedJavaLocalRef<jbyteArray> GetOpaqueState(
       JNIEnv* env, jobject obj);
   jboolean RestoreFromOpaqueState(JNIEnv* env, jobject obj, jbyteArray state);
   void FocusFirstNode(JNIEnv* env, jobject obj);
   void SetBackgroundColor(JNIEnv* env, jobject obj, jint color);
+  void OnComputeScroll(JNIEnv* env, jobject obj, jlong animation_time_millis);
   bool OnDraw(JNIEnv* env,
               jobject obj,
               jobject canvas,
               jboolean is_hardware_accelerated,
               jint scroll_x,
               jint scroll_y,
               jint visible_left,
               jint visible_top,
               jint visible_right,
               jint visible_bottom);
@@ skipping 60 matching lines @@
   void OnWebLayoutPageScaleFactorChanged(float page_scale_factor) override;
   void OnWebLayoutContentsSizeChanged(const gfx::Size& contents_size) override;
 
   // BrowserViewRendererClient implementation.
   bool RequestDrawGL(bool wait_for_completion) override;
   void PostInvalidate() override;
   void DetachFunctorFromView() override;
   void OnNewPicture() override;
   gfx::Point GetLocationOnScreen() override;
   void ScrollContainerViewTo(gfx::Vector2d new_value) override;
-  bool IsFlingActive() const override;
+  bool IsSmoothScrollingActive() const override;
   void UpdateScrollState(gfx::Vector2d max_scroll_offset,
                          gfx::SizeF contents_size_dip,
                          float page_scale_factor,
                          float min_page_scale_factor,
                          float max_page_scale_factor) override;
-  void DidOverscroll(gfx::Vector2d overscroll_delta) override;
+  void DidOverscroll(gfx::Vector2d overscroll_delta,
+                     gfx::Vector2dF overscroll_velocity,
+                     bool first_overscroll_x,
+                     bool first_overscroll_y) override;
+
   void ParentDrawConstraintsUpdated(
       const ParentCompositorDrawConstraints& draw_constraints) override {}
 
   void ClearCache(JNIEnv* env, jobject obj, jboolean include_disk_files);
   void SetPendingWebContentsForPopup(scoped_ptr<content::WebContents> pending);
   jlong ReleasePopupAwContents(JNIEnv* env, jobject obj);
 
   void ScrollTo(JNIEnv* env, jobject obj, jint x, jint y);
   void SetDipScale(JNIEnv* env, jobject obj, jfloat dip_scale);
   void SetSaveFormData(bool enabled);
@@ skipping 42 matching lines @@
   GLViewRendererManager::Key renderer_manager_key_;
 
   DISALLOW_COPY_AND_ASSIGN(AwContents);
 };
 
 bool RegisterAwContents(JNIEnv* env);
 
 }  // namespace android_webview
 
 #endif  // ANDROID_WEBVIEW_NATIVE_AW_CONTENTS_H_