CPAPI gears drag drop and renderer IPC....

CPAPI (0.10) functions for gears drag drop; one to extract the
drag type/data given an NPObject *event, one to override the
drop effect (drag cursor).

Gears drag drop API receives a browser event as an NPObject* so
the event is untrusted.  Provide IPC calls to the renderer so
gears can pass the event to renderer/V8 for checking, prior to
drag type/data extraction, or the setting of the drop effect.

V8 event checking is a TODO(noel), http://mondrian/10947778 for
the CPAPI (0.10) change submitted to gears.

BUG=7995

Original patch by Noel Gordon via:
http://codereview.chromium.org/99240
Review URL: http://codereview.chromium.org/115280

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@15986 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 16 insertions, 0 deletions

diff --git a/chrome/browser/chrome_plugin_host.cc b/chrome/browser/chrome_plugin_host.cc
index 08ad7e7..0d21cdd 100644
--- a/chrome/browser/chrome_plugin_host.cc
+++ b/chrome/browser/chrome_plugin_host.cc
@@ -527,6 +527,20 @@ CPError STDCALL CPB_HandleCommand(
   return CPERR_FAILURE;
 }
 
+CPError STDCALL CPB_GetDragData(
+    CPID id, CPBrowsingContext context, struct NPObject* event, bool add_data,
+    int32* identity, int32* event_id, char** drag_type, char** drag_data) {
+  *identity = *event_id = 0;
+  NOTREACHED() << "Should not be called in browser process.";
+  return CPERR_FAILURE;
+}
+
+CPError STDCALL CPB_SetDropEffect(
+    CPID id, CPBrowsingContext context, struct NPObject* event, int effect) {
+  NOTREACHED() << "Should not be called in browser process.";
+  return CPERR_FAILURE;
+}
+
 //
 // Functions related to network interception
 //
@@ -768,6 +782,8 @@ CPBrowserFuncs* GetCPBrowserFuncsForBrowser() {
     browser_funcs.send_sync_message = CPB_SendSyncMessage;
     browser_funcs.plugin_thread_async_call = CPB_PluginThreadAsyncCall;
     browser_funcs.open_file_dialog = CPB_OpenFileDialog;
+    browser_funcs.get_drag_data = CPB_GetDragData;
+    browser_funcs.set_drop_effect = CPB_SetDropEffect;
 
     request_funcs.size = sizeof(request_funcs);
     request_funcs.start_request = CPR_StartRequest;