Move media related mimetype functionality out of net/ and into media/.

content/browser/frame_host/navigation_controller_impl.cc

Index: content/browser/frame_host/navigation_controller_impl.cc
diff --git a/content/browser/frame_host/navigation_controller_impl.cc b/content/browser/frame_host/navigation_controller_impl.cc
index a25aeba2e7496d540593fba2622b239992547ad9..ea5297648453e7cdc4b91ec6de5cb83cf29dac39 100644
--- a/content/browser/frame_host/navigation_controller_impl.cc
+++ b/content/browser/frame_host/navigation_controller_impl.cc
@@ -37,8 +37,8 @@
 #include "content/public/browser/user_metrics.h"
 #include "content/public/common/content_client.h"
 #include "content/public/common/content_constants.h"
+#include "media/base/mime_util.h"
 #include "net/base/escape.h"
-#include "net/base/mime_util.h"
 #include "net/base/net_util.h"
 #include "skia/ext/platform_canvas.h"
 #include "url/url_constants.h"
@@ -483,8 +483,7 @@ NavigationEntry* NavigationControllerImpl::GetLastCommittedEntry() const {
 
 bool NavigationControllerImpl::CanViewSource() const {
   const std::string& mime_type = delegate_->GetContentsMimeType();
-  bool is_viewable_mime_type = net::IsSupportedNonImageMimeType(mime_type) &&
-      !net::IsSupportedMediaMimeType(mime_type);

[acolwell GONE FROM CHROMIUM, 2014/07/17 23:19:31]

Since media mimetypes aren't in the non-image map, we don't have to make the
extra call to exclude them.

+  bool is_viewable_mime_type = net::IsSupportedNonImageMimeType(mime_type);
   NavigationEntry* visible_entry = GetVisibleEntry();
   return visible_entry && !visible_entry->IsViewSourceMode() &&
       is_viewable_mime_type && !delegate_->GetInterstitialPage();