Unify Android Webview and Chrome's fling

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 906 matching lines @@
 void AwContents::FocusFirstNode(JNIEnv* env, jobject obj) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   web_contents_->FocusThroughTabTraversal(false);
 }
 
 void AwContents::SetBackgroundColor(JNIEnv* env, jobject obj, jint color) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   render_view_host_ext_->SetBackgroundColor(color);
 }
 
+void AwContents::OnComputeScroll(JNIEnv* env,
+                                 jobject obj,
+                                 jlong animation_time_millis) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  browser_view_renderer_.OnComputeScroll(
+      base::TimeTicks() +
+      base::TimeDelta::FromMilliseconds(animation_time_millis));
+}
+
 jlong AwContents::ReleasePopupAwContents(JNIEnv* env, jobject obj) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   return reinterpret_cast<intptr_t>(pending_contents_.release());
 }
 
 gfx::Point AwContents::GetLocationOnScreen() {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   JNIEnv* env = AttachCurrentThread();
   ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
   if (obj.is_null())
@@ skipping 39 matching lines @@
                                     obj.obj(),
                                     max_scroll_offset.x(),
                                     max_scroll_offset.y(),
                                     contents_size_dip.width(),
                                     contents_size_dip.height(),
                                     page_scale_factor,
                                     min_page_scale_factor,
                                     max_page_scale_factor);
 }
 
-void AwContents::DidOverscroll(gfx::Vector2d overscroll_delta) {
+void AwContents::DidOverscroll(gfx::Vector2d overscroll_delta,
+                               gfx::Vector2dF overscroll_velocity,
+                               bool first_overscroll_x,
+                               bool first_overscroll_y) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   JNIEnv* env = AttachCurrentThread();
   ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
   if (obj.is_null())
     return;
-  Java_AwContents_didOverscroll(
-      env, obj.obj(), overscroll_delta.x(), overscroll_delta.y());
+  Java_AwContents_didOverscroll(env, obj.obj(), overscroll_delta.x(),
+                                overscroll_delta.y(), overscroll_velocity.x(),
+                                overscroll_velocity.y(), first_overscroll_x,
+                                first_overscroll_y);
 }
 
 void AwContents::SetDipScale(JNIEnv* env, jobject obj, jfloat dip_scale) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   SetDipScaleInternal(dip_scale);
 }
 
 void AwContents::SetDipScaleInternal(float dip_scale) {
   browser_view_renderer_.SetDipScale(dip_scale);
 }
@@ skipping 145 matching lines @@
 
   AwMessagePortServiceImpl::GetInstance()->CreateMessageChannel(env, ports,
       GetMessagePortMessageFilter());
 }
 
 void SetShouldDownloadFavicons(JNIEnv* env, jclass jclazz) {
   g_should_download_favicons = true;
 }
 
 }  // namespace android_webview