Make double-clicking to select work correctly on Mac.

webkit/glue/editor_client_impl.cc

 // Copyright (c) 2006-2008 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.
 
 // The Mac interface forwards most of these commands to the application layer,
 // and I'm not really sure what to do about most of them.
 
 #include "config.h"
 #include "webkit/glue/editor_client_impl.h"
 
@@ skipping 92 matching lines @@
   if (use_editor_delegate_) {
     WebViewDelegate* d = web_view_->delegate();
     if (d)
       return d->SmartInsertDeleteEnabled();
   }
   return true;
 }
 
 bool EditorClientImpl::isSelectTrailingWhitespaceEnabled() {
   if (use_editor_delegate_) {
-  WebViewDelegate* d = web_view_->delegate();
-  if (d)
-    return d->IsSelectTrailingWhitespaceEnabled();
+    WebViewDelegate* d = web_view_->delegate();
+    if (d)
+      return d->IsSelectTrailingWhitespaceEnabled();
   }
+
+#if defined(OS_WIN)
   return true;
+#elif defined(OS_MACOSX) || defined(OS_LINUX)
+  return false;
+#endif
 }
 
 bool EditorClientImpl::ShouldSpellcheckByDefault() {
   // Spellcheck should be enabled for all editable areas (such as textareas,
   // contentEditable regions, and designMode docs), except text inputs.
   const WebCore::Frame* frame = web_view_->GetFocusedWebCoreFrame();
   if (!frame)
     return false;
   const WebCore::Editor* editor = frame->editor();
   if (!editor)
@@ skipping 890 matching lines @@
   }
   return L"(UNKNOWN AFFINITY)";
 }
 
 std::wstring EditorClientImpl::Describe(WebCore::CSSStyleDeclaration* style) {
   // TODO(pamg): Implement me.  It's not clear what WebKit produces for this
   // (their [style description] method), and none of the layout tests provide
   // an example.  But because none of them use it, it's not yet important.
   return std::wstring();
 }