MacViews: Enable acceptsFirstMouse for BridgedContentView.

ui/views/cocoa/bridged_content_view.mm

 // Copyright 2014 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.
 
 #import "ui/views/cocoa/bridged_content_view.h"
 
 #include "base/logging.h"
 #import "base/mac/mac_util.h"
 #import "base/mac/scoped_nsobject.h"
 #include "base/strings/sys_string_conversions.h"
@@ skipping 492 matching lines @@
 
   // If there's a layer, painting occurs in BridgedNativeWidget::OnPaintLayer().
   if (hostedView_->GetWidget()->GetLayer())
     return;
 
   gfx::CanvasSkiaPaint canvas(dirtyRect, false /* opaque */);
   hostedView_->GetWidget()->OnNativeWidgetPaint(
       ui::CanvasPainter(&canvas, 1.f).context());
 }
 
+// To maximize consistency with the Cocoa browser (mac_views_browser=0), accept
+// mouse clicks immediately so that clicking on Chrome from an inactive window
+// will allow the event to be processed, rather than merely activate the window.
+- (BOOL)acceptsFirstMouse:(NSEvent*)theEvent {
+  return YES;
+}
+
 - (NSTextInputContext*)inputContext {
   // If the textInputClient_ does not exist, return nil since this view does not
   // conform to NSTextInputClient protocol.
   if (!textInputClient_)
     return nil;
 
   // If a menu is active, and -[NSView interpretKeyEvents:] asks for the
   // input context, return nil. This ensures the action message is sent to
   // the view, rather than any NSTextInputClient a subview has installed.
   MenuController* menuController = MenuController::GetActiveInstance();
@@ skipping 397 matching lines @@
   }
 
   return [super accessibilityAttributeValue:attribute];
 }
 
 - (id)accessibilityHitTest:(NSPoint)point {
   return [hostedView_->GetNativeViewAccessible() accessibilityHitTest:point];
 }
 
 @end