Fix processing of mouse events on MacViews.

ui/views/cocoa/bridged_content_view.mm

Index: ui/views/cocoa/bridged_content_view.mm
diff --git a/ui/views/cocoa/bridged_content_view.mm b/ui/views/cocoa/bridged_content_view.mm
index 7c49cd0444346d7291793796970f16a6d7a7c505..023b0e5d5a1251c12f4ca8c8bcaf66c7232e2054 100644
--- a/ui/views/cocoa/bridged_content_view.mm
+++ b/ui/views/cocoa/bridged_content_view.mm
@@ -55,6 +55,7 @@ bool IsRectInsidePath(NSRect rect, NSBezierPath* path) {
                                          rect.origin.y + rect.size.height)];
 }
 
+#if 0  // BROWSER-55005

[Avi (use Gerrit), 2016/10/25 15:34:50]

Don't commit commented-out code.

[snake, 2016/10/25 15:46:18]

Done.

 // Convert a |point| in |source_window|'s AppKit coordinate system (origin at
 // the bottom left of the window) to |target_window|'s content rect, with the
 // origin at the top left of the content area.
@@ -73,6 +74,7 @@ bool IsRectInsidePath(NSRect rect, NSBezierPath* path) {
   return gfx::Point(point_in_window.x,
                     NSHeight(content_rect) - point_in_window.y);
 }
+#endif  // BROWSER-55005
 
 // Dispatch |event| to |menu_controller| and return true if |event| is
 // swallowed.
@@ -345,26 +347,6 @@ - (void)clearView {
   [self removeTrackingArea:cursorTrackingArea_.get()];
 }
 
-- (void)processCapturedMouseEvent:(NSEvent*)theEvent {
-  if (!hostedView_)
-    return;
-
-  NSWindow* source = [theEvent window];
-  NSWindow* target = [self window];
-  DCHECK(target);
-
-  // If it's the view's window, process normally.
-  if ([target isEqual:source]) {
-    [self mouseEvent:theEvent];
-    return;
-  }
-
-  ui::MouseEvent event(theEvent);
-  event.set_location(
-      MovePointToWindow([theEvent locationInWindow], source, target));
-  hostedView_->GetWidget()->OnMouseEvent(&event);
-}
-
 - (void)updateTooltipIfRequiredAt:(const gfx::Point&)locationInContent {
   DCHECK(hostedView_);
   base::string16 newTooltipText;
@@ -383,6 +365,13 @@ - (void)updateTooltipIfRequiredAt:(const gfx::Point&)locationInContent {
   }
 }
 
+- (void)hideTooltipIfRequired {
+  if (!lastTooltipText_.empty()) {
+    lastTooltipText_.clear();
+    [self setToolTipAtMousePoint:nil];
+  }
+}
+
 - (void)updateWindowMask {
   DCHECK(![self inLiveResize]);
   DCHECK(base::mac::IsOS10_9());
@@ -580,19 +569,18 @@ - (void)selectAll:(id)sender {
 - (void)enableTracking {
 }
 
+// Explicitly ignore BaseView's |dragging_| logic
+- (void)mouseDown:(NSEvent*)theEvent {
+  [self mouseEvent:theEvent];
+}
+
 // Translates the location of |theEvent| to toolkit-views coordinates and passes
 // the event to NativeWidgetMac for handling.
 - (void)mouseEvent:(NSEvent*)theEvent {
   if (!hostedView_)
     return;
-
-  ui::MouseEvent event(theEvent);
-
-  // Aura updates tooltips with the help of aura::Window::AddPreTargetHandler().
-  // Mac hooks in here.
-  [self updateTooltipIfRequiredAt:event.location()];
-
-  hostedView_->GetWidget()->OnMouseEvent(&event);
+  views::NativeWidgetMac::GetBridgeForNativeWindow([self window])
+      ->OnMouseEvent(theEvent);
 }
 
 // NSView implementation.
@@ -776,8 +764,9 @@ - (void)scrollWheel:(NSEvent*)theEvent {
   if (!hostedView_)
     return;
 
-  ui::ScrollEvent event(theEvent);
-  hostedView_->GetWidget()->OnScrollEvent(&event);
+  // Passes the event to BridgedNativeWidget for handling.
+  views::NativeWidgetMac::GetBridgeForNativeWindow([self window])
+      ->OnMouseEvent(theEvent);
 }
 
 - (void)quickLookWithEvent:(NSEvent*)theEvent {