Migrate to OS_MAC and OS_APPLE in content

Because content is not used by iOS, this migrates
 defined(OS_MACOSX) -> defined(OS_MAC)

Bug: 1105907
Change-Id: Ibf85273fea9c5566594ca00f2589b890515be6c7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2321210
Commit-Queue: Avi Drissman <[email protected]>
Reviewed-by: Nasko Oskov <[email protected]>
Reviewed-by: Robert Sesek <[email protected]>
Cr-Commit-Position: refs/heads/master@{#792842}
diff --git a/content/browser/web_contents/web_contents_impl.cc b/content/browser/web_contents/web_contents_impl.cc
index 12a1c9a..32b0006 100644
--- a/content/browser/web_contents/web_contents_impl.cc
+++ b/content/browser/web_contents/web_contents_impl.cc
@@ -2786,7 +2786,7 @@
 
 bool WebContentsImpl::HandleWheelEvent(
     const blink::WebMouseWheelEvent& event) {
-#if !defined(OS_MACOSX)
+#if !defined(OS_MAC)
   // On platforms other than Mac, control+mousewheel may change zoom. On Mac,
   // this isn't done for two reasons:
   //   -the OS already has a gesture to do this through pinch-zoom
@@ -4043,7 +4043,7 @@
 }
 
 void WebContentsImpl::CopyToFindPboard() {
-#if defined(OS_MACOSX)
+#if defined(OS_MAC)
   auto* input_handler = GetFocusedFrameWidgetInputHandler();
   if (!input_handler)
     return;
@@ -6362,7 +6362,7 @@
 }
 
 void WebContentsImpl::Close(RenderViewHost* rvh) {
-#if defined(OS_MACOSX)
+#if defined(OS_MAC)
   // The UI may be in an event-tracking loop, such as between the
   // mouse-down and mouse-up in text selection or a button click.
   // Defer the close until after tracking is complete, so that we
@@ -7042,7 +7042,7 @@
                                    controller_.GetLastCommittedEntryIndex(),
                                    controller_.GetEntryCount());
 
-#if defined(OS_POSIX) && !defined(OS_MACOSX) && !defined(OS_ANDROID)
+#if defined(OS_POSIX) && !defined(OS_MAC) && !defined(OS_ANDROID)
   // Force a ViewMsg_Resize to be sent, needed to make plugins show up on
   // linux. See crbug.com/83941.
   RenderWidgetHostView* rwh_view = render_view_host->GetWidget()->GetView();