OverscrollGlow for mainThread-{CHROMIUM CHANGES}

content/browser/renderer_host/render_widget_host_view_android.cc

 // 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.
 
 #include "content/browser/renderer_host/render_widget_host_view_android.h"
 
 #include <android/bitmap.h>
 
 #include "base/android/build_info.h"
 #include "base/basictypes.h"
@@ skipping 384 matching lines @@
 }
 
 
 bool RenderWidgetHostViewAndroid::OnMessageReceived(
     const IPC::Message& message) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(RenderWidgetHostViewAndroid, message)
     IPC_MESSAGE_HANDLER(ViewHostMsg_StartContentIntent, OnStartContentIntent)
     IPC_MESSAGE_HANDLER(ViewHostMsg_DidChangeBodyBackgroundColor,
                         OnDidChangeBodyBackgroundColor)
+    IPC_MESSAGE_HANDLER(ViewHostMsg_DidOverScrollOnMainThread,
+                        OnDidOverScrollOnMainThread)
     IPC_MESSAGE_HANDLER(ViewHostMsg_SetNeedsBeginFrames,
                         OnSetNeedsBeginFrames)
     IPC_MESSAGE_HANDLER(ViewHostMsg_TextInputStateChanged,
                         OnTextInputStateChanged)
     IPC_MESSAGE_HANDLER(ViewHostMsg_SmartClipDataExtracted,
                         OnSmartClipDataExtracted)
     IPC_MESSAGE_HANDLER(ViewHostMsg_ShowUnhandledTapUIIfNeeded,
                         OnShowUnhandledTapUIIfNeeded)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
@@ skipping 341 matching lines @@
 void RenderWidgetHostViewAndroid::OnDidChangeBodyBackgroundColor(
     SkColor color) {
   if (cached_background_color_ == color)
     return;
 
   cached_background_color_ = color;
   if (content_view_core_)
     content_view_core_->OnBackgroundColorChanged(color);
 }
 
+void RenderWidgetHostViewAndroid::OnDidOverScrollOnMainThread(

[jdduke (slow), 2015/04/24 16:57:23]

Looks like we don't make any distinctino between main/impl overscroll, so we
should get this for free if we reuse the existing overscroll message.

[MuVen, 2015/04/27 09:49:15]

Done.

+    gfx::Vector2dF unused_delta,
+    gfx::Vector2dF accumalted_root_overscroll,
+    gfx::Vector2dF flingVelocity,
+    gfx::PointF event_point) {
+  DidOverscrollParams params;
+  params.accumulated_overscroll = accumalted_root_overscroll;
+  params.latest_overscroll_delta = unused_delta;
+  params.current_fling_velocity = flingVelocity;
+  params.causal_event_viewport_point = event_point;
+  DidOverscroll(params);
+}
+
 void RenderWidgetHostViewAndroid::OnSetNeedsBeginFrames(bool enabled) {
   TRACE_EVENT1("cc", "RenderWidgetHostViewAndroid::OnSetNeedsBeginFrames",
                "enabled", enabled);
   if (enabled)
     RequestVSyncUpdate(PERSISTENT_BEGIN_FRAME);
   else
     outstanding_vsync_requests_ &= ~PERSISTENT_BEGIN_FRAME;
 }
 
 void RenderWidgetHostViewAndroid::OnStartContentIntent(
@@ skipping 1323 matching lines @@
   results->orientationAngle = display.RotationAsDegree();
   results->orientationType =
       RenderWidgetHostViewBase::GetOrientationTypeForMobile(display);
   gfx::DeviceDisplayInfo info;
   results->depth = info.GetBitsPerPixel();
   results->depthPerComponent = info.GetBitsPerComponent();
   results->isMonochrome = (results->depthPerComponent == 0);
 }
 
 } // namespace content