Enable DownloadRequestManager for Mac.

DownloadRequestManager is the object that manages the number of downloads
that can occur in a given tab. It throttles non-user initiated downloads
to prevent carpet-bombing download attacks.

Enabling this object for Mac fixes the issue where we can only download
one file in a given tab.

BUG=None (mac work).
TEST=Can now download more than one item in a tab.

Review URL: http://codereview.chromium.org/132039

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@18840 0039d316-1c4b-4281-b951-d872f2087c98

3 files changed, 2 insertions, 9 deletions

diff --git a/chrome/browser/browser_process.cc b/chrome/browser/browser_process.cc
index a646a9e..4500117 100644
--- a/chrome/browser/browser_process.cc
+++ b/chrome/browser/browser_process.cc
@@ -4,15 +4,12 @@
 
 #include "chrome/browser/browser_process.h"
 
-BrowserProcess* g_browser_process = NULL;
-
-#if defined(OS_WIN) || defined(OS_LINUX)
-
 #include "chrome/browser/renderer_host/resource_dispatcher_host.h"
 
+BrowserProcess* g_browser_process = NULL;
+
 DownloadRequestManager* BrowserProcess::download_request_manager() {
   ResourceDispatcherHost* rdh = resource_dispatcher_host();
   return rdh ? rdh->download_request_manager() : NULL;
 }
 
-#endif
diff --git a/chrome/browser/browser_process.h b/chrome/browser/browser_process.h
index 656b1ff..a329c6c 100644
--- a/chrome/browser/browser_process.h
+++ b/chrome/browser/browser_process.h
@@ -133,9 +133,7 @@ class BrowserProcess {
 
   virtual MemoryModel memory_model() = 0;
 
-#if defined(OS_WIN) || defined(OS_LINUX)
   DownloadRequestManager* download_request_manager();
-#endif
 
   // Returns an event that is signaled when the browser shutdown.
   virtual base::WaitableEvent* shutdown_event() = 0;
diff --git a/chrome/browser/tab_contents/tab_contents.cc b/chrome/browser/tab_contents/tab_contents.cc
index 557d2a6..fe2ce0d 100644
--- a/chrome/browser/tab_contents/tab_contents.cc
+++ b/chrome/browser/tab_contents/tab_contents.cc
@@ -2188,11 +2188,9 @@ void TabContents::OnDidGetApplicationInfo(
 
 void TabContents::OnUserGesture() {
   // See comment in RenderViewHostDelegate::OnUserGesture as to why we do this.
-#if defined(OS_WIN) || defined(OS_LINUX)
   DownloadRequestManager* drm = g_browser_process->download_request_manager();
   if (drm)
     drm->OnUserGesture(this);
-#endif
   controller_.OnUserGesture();
 }