Revert 236254 "Replace old with new synthetic gesture framework."

trunk/src/content/browser/renderer_host/render_widget_host_view_android.cc

Index: trunk/src/content/browser/renderer_host/render_widget_host_view_android.cc
===================================================================
--- trunk/src/content/browser/renderer_host/render_widget_host_view_android.cc	(revision 236262)
+++ trunk/src/content/browser/renderer_host/render_widget_host_view_android.cc	(working copy)
@@ -33,6 +33,7 @@
 #include "content/browser/gpu/gpu_surface_tracker.h"
 #include "content/browser/renderer_host/compositor_impl_android.h"
 #include "content/browser/renderer_host/dip_util.h"
+#include "content/browser/renderer_host/generic_touch_gesture_android.h"
 #include "content/browser/renderer_host/image_transport_factory_android.h"
 #include "content/browser/renderer_host/input/synthetic_gesture_target_android.h"
 #include "content/browser/renderer_host/render_widget_host_impl.h"
@@ -56,6 +57,7 @@
 namespace {
 
 const int kUndefinedOutputSurfaceId = -1;
+const int kMinimumPointerDistance = 50;
 
 void InsertSyncPointAndAckForCompositor(
     int renderer_host_id,
@@ -621,6 +623,30 @@
       host_, content_view_core_->CreateTouchEventSynthesizer()));
 }
 
+SyntheticGesture* RenderWidgetHostViewAndroid::CreateSmoothScrollGesture(
+    bool scroll_down, int pixels_to_scroll, int mouse_event_x,
+    int mouse_event_y) {
+  return new GenericTouchGestureAndroid(
+      GetRenderWidgetHost(),
+      content_view_core_->CreateOnePointTouchGesture(
+          mouse_event_x, mouse_event_y,
+          0, scroll_down ? -pixels_to_scroll : pixels_to_scroll));
+}
+
+SyntheticGesture* RenderWidgetHostViewAndroid::CreatePinchGesture(
+    bool zoom_in, int pixels_to_move, int anchor_x,
+    int anchor_y) {
+  int distance_between_pointers = zoom_in ?
+      kMinimumPointerDistance : (kMinimumPointerDistance + pixels_to_move);
+  return new GenericTouchGestureAndroid(
+      GetRenderWidgetHost(),
+      content_view_core_->CreateTwoPointTouchGesture(
+          anchor_x, anchor_y - distance_between_pointers / 2,
+          0, (zoom_in ? -pixels_to_move : pixels_to_move) / 2,
+          anchor_x, anchor_y + distance_between_pointers / 2,
+          0, (zoom_in ? pixels_to_move : -pixels_to_move) / 2));
+}
+
 void RenderWidgetHostViewAndroid::OnAcceleratedCompositingStateChange() {
 }