Remove ui::TouchEvent -> blink::WebTouchEvent conversion methods.

content/browser/renderer_host/render_widget_host_view_aura.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_aura.h"
 
 #include "base/auto_reset.h"
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/callback_helpers.h"
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
 #include "base/strings/string_number_conversions.h"
 #include "cc/layers/layer.h"
 #include "cc/output/copy_output_request.h"
 #include "cc/output/copy_output_result.h"
 #include "cc/resources/texture_mailbox.h"
 #include "cc/trees/layer_tree_settings.h"
 #include "content/browser/accessibility/browser_accessibility_manager.h"
 #include "content/browser/accessibility/browser_accessibility_state_impl.h"
 #include "content/browser/frame_host/frame_tree.h"
 #include "content/browser/frame_host/frame_tree_node.h"
 #include "content/browser/frame_host/render_frame_host_impl.h"
 #include "content/browser/gpu/compositor_util.h"
 #include "content/browser/renderer_host/compositor_resize_lock_aura.h"
 #include "content/browser/renderer_host/dip_util.h"
 #include "content/browser/renderer_host/input/synthetic_gesture_target_aura.h"
+#include "content/browser/renderer_host/input/web_input_event_util.h"
 #include "content/browser/renderer_host/overscroll_controller.h"
 #include "content/browser/renderer_host/render_view_host_delegate.h"
 #include "content/browser/renderer_host/render_view_host_delegate_view.h"
 #include "content/browser/renderer_host/render_view_host_impl.h"
 #include "content/browser/renderer_host/render_widget_host_impl.h"
 #include "content/browser/renderer_host/ui_events_helper.h"
 #include "content/browser/renderer_host/web_input_event_aura.h"
 #include "content/common/gpu/client/gl_helper.h"
 #include "content/common/gpu/gpu_messages.h"
 #include "content/common/view_messages.h"
@@ skipping 183 matching lines @@
     const HWND owner = ::GetWindow(window, GW_OWNER);
     if (toplevel_hwnd == owner) {
       ::PostMessage(window, WM_CANCELMODE, 0, 0);
     }
   }
 
   return TRUE;
 }
 #endif
 
-void UpdateWebTouchEventAfterDispatch(blink::WebTouchEvent* event,
-                                      blink::WebTouchPoint* point) {
-  if (point->state != blink::WebTouchPoint::StateReleased &&
-      point->state != blink::WebTouchPoint::StateCancelled)
-    return;
-
-  const unsigned new_length = event->touchesLength - 1;
-  // Work around a gcc 4.9 bug. crbug.com/392872
-  if (new_length >= event->touchesLengthCap)
-    return;
-
-  for (unsigned i = point - event->touches; i < new_length; ++i)
-    event->touches[i] = event->touches[i + 1];
-  event->touchesLength = new_length;
-}
-
 bool CanRendererHandleEvent(const ui::MouseEvent* event) {
   if (event->type() == ui::ET_MOUSE_CAPTURE_CHANGED)
     return false;
 
 #if defined(OS_WIN)
   // Renderer cannot handle WM_XBUTTON or NC events.
   switch (event->native_event().message) {
     case WM_XBUTTONDOWN:
     case WM_XBUTTONUP:
     case WM_XBUTTONDBLCLK:
@@ skipping 1789 matching lines @@
 
   event->SetHandled();
 }
 
 void RenderWidgetHostViewAura::OnTouchEvent(ui::TouchEvent* event) {
   TRACE_EVENT0("input", "RenderWidgetHostViewAura::OnTouchEvent");
   if (touch_editing_client_ && touch_editing_client_->HandleInputEvent(event))
     return;
 
   // Update the touch event first.
-  blink::WebTouchPoint* point =
-      UpdateWebTouchEventFromUIEvent(*event, &touch_event_);
-
-  if (!point) {
+  if (!pointer_state_.OnTouch(*event)) {
     event->StopPropagation();
     return;
   }
 
+  blink::WebTouchEvent touch_event = CreateWebTouchEventFromMotionEvent(
+      pointer_state_, event->may_cause_scrolling());
+  pointer_state_.CleanupRemovedTouchPoints(*event);
+
   // Forward the touch event only if a touch point was updated, and
   // there's a touch-event handler in the page, and no other
   // touch-event is in the queue. It is important to always mark
   // events as being handled asynchronously if there is a touch-event
   // handler in the page, or some touch-event is already in the queue,
   // even if no point has been updated. This ensures that this event
   // does not get processed by the gesture recognizer before events
   // currently awaiting dispatch in the touch queue.
   if (host_->ShouldForwardTouchEvent()) {
     event->DisableSynchronousHandling();
-    host_->ForwardTouchEventWithLatencyInfo(touch_event_, *event->latency());
+    host_->ForwardTouchEventWithLatencyInfo(touch_event, *event->latency());
   }
-  UpdateWebTouchEventAfterDispatch(&touch_event_, point);
 }
 
 void RenderWidgetHostViewAura::OnGestureEvent(ui::GestureEvent* event) {
   TRACE_EVENT0("input", "RenderWidgetHostViewAura::OnGestureEvent");
   if ((event->type() == ui::ET_GESTURE_PINCH_BEGIN ||
       event->type() == ui::ET_GESTURE_PINCH_UPDATE ||
       event->type() == ui::ET_GESTURE_PINCH_END) && !pinch_zoom_enabled_) {
     event->SetHandled();
     return;
   }
@@ skipping 561 matching lines @@
 
 ////////////////////////////////////////////////////////////////////////////////
 // RenderWidgetHostViewBase, public:
 
 // static
 void RenderWidgetHostViewBase::GetDefaultScreenInfo(WebScreenInfo* results) {
   GetScreenInfoForWindow(results, NULL);
 }
 
 }  // namespace content