Implement "Email Link To Page" menu command.

This menu item only exists in the Mac build, but the code is cross-platform so it could be hooked up on other platforms as well, if desired.
It works by generating a URL of the form
  mailto:?subject=Fwd:%20PAGETITLE&body=%0A%0APAGEURL
and telling platform_utils to open it.

This is my first patch involving command handling; I've tried to follow the way similar menu commands
like Print are implemented, but feel free to tell me if there are better ways.

I didn't find any place for unit tests for TabContents; if this needs tests, let me know where they should go.

BUG=29232
TEST=none

Review URL: http://codereview.chromium.org/466019

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@33746 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 7 insertions, 4 deletions

diff --git a/chrome/common/platform_util_mac.mm b/chrome/common/platform_util_mac.mm
index cf858eb..2c9883a 100644
--- a/chrome/common/platform_util_mac.mm
+++ b/chrome/common/platform_util_mac.mm
@@ -20,21 +20,24 @@ namespace platform_util {
 void ShowItemInFolder(const FilePath& full_path) {
   DCHECK_EQ([NSThread currentThread], [NSThread mainThread]);
   NSString* path_string = base::SysUTF8ToNSString(full_path.value());
-  [[NSWorkspace sharedWorkspace] selectFile:path_string
-                   inFileViewerRootedAtPath:nil];
+  if (!path_string || ![[NSWorkspace sharedWorkspace] selectFile:path_string
+                                        inFileViewerRootedAtPath:nil])
+    LOG(WARNING) << "NSWorkspace failed to select file " << full_path.value();
 }
 
 void OpenItem(const FilePath& full_path) {
   DCHECK_EQ([NSThread currentThread], [NSThread mainThread]);
   NSString* path_string = base::SysUTF8ToNSString(full_path.value());
-  [[NSWorkspace sharedWorkspace] openFile:path_string];
+  if (!path_string || ![[NSWorkspace sharedWorkspace] openFile:path_string])
+    LOG(WARNING) << "NSWorkspace failed to open file " << full_path.value();
 }
 
 void OpenExternal(const GURL& url) {
   DCHECK_EQ([NSThread currentThread], [NSThread mainThread]);
   NSString* url_string = base::SysUTF8ToNSString(url.spec());
   NSURL* ns_url = [NSURL URLWithString:url_string];
-  [[NSWorkspace sharedWorkspace] openURL:ns_url];
+  if (!ns_url || ![[NSWorkspace sharedWorkspace] openURL:ns_url])
+    LOG(WARNING) << "NSWorkspace failed to open URL " << url;
 }
 
 gfx::NativeWindow GetTopLevel(gfx::NativeView view) {