Using the correct target NSView to show the dictionary bubble.

content/browser/renderer_host/render_widget_host_view_mac.mm

 // 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_mac.h"
 
 #import <objc/runtime.h>
 #include <OpenGL/gl.h>
 #include <QuartzCore/QuartzCore.h>
 
@@ skipping 165 matching lines @@
                    consumed:(BOOL)consumed;
 
 - (void)keyEvent:(NSEvent*)theEvent wasKeyEquivalent:(BOOL)equiv;
 - (void)windowDidChangeBackingProperties:(NSNotification*)notification;
 - (void)windowChangedGlobalFrame:(NSNotification*)notification;
 - (void)checkForPluginImeCancellation;
 - (void)updateScreenProperties;
 - (void)setResponderDelegate:
         (NSObject<RenderWidgetHostViewMacDelegate>*)delegate;
 - (void)showLookUpDictionaryOverlayInternal:(NSAttributedString*) string
-                              baselinePoint:(NSPoint) baselinePoint;
+                              baselinePoint:(NSPoint) baselinePoint
+                                 targetView:(NSView*) view;
 @end
 
 // A window subclass that allows the fullscreen window to become main and gain
 // keyboard focus. This is only used for pepper flash. Normal fullscreen is
 // handled by the browser.
 @interface PepperFlashFullscreenWindow : UnderlayOpenGLHostingWindow
 @end
 
 @implementation PepperFlashFullscreenWindow
 
@@ skipping 2231 matching lines @@
 - (void)smartMagnifyWithEvent:(NSEvent*)event {
   const WebGestureEvent& smartMagnifyEvent =
       WebGestureEventBuilder::Build(event, self);
   if (renderWidgetHostView_ && renderWidgetHostView_->render_widget_host_) {
     renderWidgetHostView_->render_widget_host_->ForwardGestureEvent(
         smartMagnifyEvent);
   }
 }
 
 - (void)showLookUpDictionaryOverlayInternal:(NSAttributedString*) string
-                              baselinePoint:(NSPoint) baselinePoint {
+                              baselinePoint:(NSPoint) baselinePoint
+                                 targetView:(NSView*) view {
   if ([string length] == 0) {
     // The PDF plugin does not support getting the attributed string at point.
     // Until it does, use NSPerformService(), which opens Dictionary.app.
     // TODO(shuchen): Support GetStringAtPoint() & GetStringFromRange() for PDF.
     // See crbug.com/152438.
     NSString* text = base::SysUTF8ToNSString(
         renderWidgetHostView_->selected_text());
     if ([text length] == 0)
       return;
     NSPasteboard* pasteboard = [NSPasteboard pasteboardWithUniqueName];
     NSArray* types = [NSArray arrayWithObject:NSStringPboardType];
     [pasteboard declareTypes:types owner:nil];
     if ([pasteboard setString:text forType:NSStringPboardType])
       NSPerformService(@"Look Up in Dictionary", pasteboard);
     return;
   }
   dispatch_async(dispatch_get_main_queue(), ^{
-      [self showDefinitionForAttributedString:string
-                                      atPoint:baselinePoint];
+    [view showDefinitionForAttributedString:string
+                                    atPoint:baselinePoint];
   });
 }
 
-- (void)showLookUpDictionaryOverlayFromRange:(NSRange)range {
+- (void)showLookUpDictionaryOverlayFromRange:(NSRange)range
+                                  targetView:(NSView*)targetView {
   TextInputClientMac::GetInstance()->GetStringFromRange(
       renderWidgetHostView_->render_widget_host_, range,
       ^(NSAttributedString* string, NSPoint baselinePoint) {
         [self showLookUpDictionaryOverlayInternal:string
-                                    baselinePoint:baselinePoint];
+                                    baselinePoint:baselinePoint
+                                       targetView:targetView];
       }
   );
 }
 
 - (void)showLookUpDictionaryOverlayAtPoint:(NSPoint)point {
   TextInputClientMac::GetInstance()->GetStringAtPoint(
       renderWidgetHostView_->render_widget_host_,
       gfx::Point(point.x, NSHeight([self frame]) - point.y),
       ^(NSAttributedString* string, NSPoint baselinePoint) {
         [self showLookUpDictionaryOverlayInternal:string
-                                    baselinePoint:baselinePoint];
+                                    baselinePoint:baselinePoint
+                                       targetView:self];
       }
   );
 }
 
 // This is invoked only on 10.8 or newer when the user taps a word using
 // three fingers.
 - (void)quickLookWithEvent:(NSEvent*)event {
   NSPoint point = [self convertPoint:[event locationInWindow] fromView:nil];
   [self showLookUpDictionaryOverlayAtPoint:point];
 }
@@ skipping 992 matching lines @@
 
 // "-webkit-app-region: drag | no-drag" is implemented on Mac by excluding
 // regions that are not draggable. (See ControlRegionView in
 // native_app_window_cocoa.mm). This requires the render host view to be
 // draggable by default.
 - (BOOL)mouseDownCanMoveWindow {
   return YES;
 }
 
 @end