Look Up on Force Touch

content/browser/renderer_host/render_widget_host_view_mac.mm

Index: content/browser/renderer_host/render_widget_host_view_mac.mm
diff --git a/content/browser/renderer_host/render_widget_host_view_mac.mm b/content/browser/renderer_host/render_widget_host_view_mac.mm
index 29fd891e02b785c3c46e54767a046514fef71dd5..ed80519ad0c68b0f2e573ab52b8c98daf027c228 100644
--- a/content/browser/renderer_host/render_widget_host_view_mac.mm
+++ b/content/browser/renderer_host/render_widget_host_view_mac.mm
@@ -40,6 +40,7 @@
 #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/input/input_router.h"
 #include "content/browser/renderer_host/input/web_input_event_builders_mac.h"
 #include "content/browser/renderer_host/render_view_host_impl.h"
 #include "content/browser/renderer_host/render_widget_helper.h"
@@ -2328,6 +2329,22 @@ void RenderWidgetHostViewMac::OnDisplayMetricsChanged(
     [NSCursor setHiddenUntilMouseMoves:YES];
 }
 
+- (void)forceTouchEvent:(NSEvent*)theEvent {
+  // Convert the event point into coordinates in the a web content.
+  NSPoint locationInView =
+      [self convertPoint:[theEvent locationInWindow] fromView:nil];
+  NSPoint webContentPoint = NSMakePoint(
+      locationInView.x, [self frame].size.height - locationInView.y);
+
+  // Sends an input to the renderer to select the word at the event's
+  // coordinates. A response from the renderer for this event will cause the
+  // browser to look up the selected word.
+  RenderWidgetHostImpl* rwh = renderWidgetHostView_->render_widget_host_;
+  rwh->input_router()->SendInput(
+      scoped_ptr<IPC::Message>(new InputMsg_SelectWordIfAnyAtCoordinates(
+          rwh->GetRoutingID(), webContentPoint.x, webContentPoint.y)));
+}
+
 - (void)shortCircuitScrollWheelEvent:(NSEvent*)event {
   DCHECK(base::mac::IsOSLionOrLater());