Refactor language detection logic to allow non-static CLD data sources.

components/translate/content/renderer/data_file_renderer_cld_data_provider.cc

 // Copyright 2014 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.
 
 #include "data_file_renderer_cld_data_provider.h"
 
 #include "base/basictypes.h"
 #include "base/files/file.h"
 #include "base/files/memory_mapped_file.h"
 #include "base/lazy_instance.h"
@@ skipping 13 matching lines @@
   CLDMmapWrapper() { value = NULL; }
   base::MemoryMappedFile* value;
 };
 base::LazyInstance<CLDMmapWrapper>::Leaky g_cld_mmap =
     LAZY_INSTANCE_INITIALIZER;
 
 }  // namespace
 
 namespace translate {
 
-// Implementation of the static factory method from RendererCldDataProvider,
-// hooking up this specific implementation for all of Chromium.
-RendererCldDataProvider* CreateRendererCldDataProviderFor(
-    content::RenderViewObserver* render_view_observer) {
-  // This log line is to help with determining which kind of provider has been
-  // configured. See also: chrome://translate-internals
-  VLOG(1) << "Creating DataFileRendererCldDataProvider";
-  return new DataFileRendererCldDataProvider(render_view_observer);
-}
-
 DataFileRendererCldDataProvider::DataFileRendererCldDataProvider(
     content::RenderViewObserver* render_view_observer)
     : render_view_observer_(render_view_observer) {
 }
 
-DataFileRendererCldDataProvider::~DataFileRendererCldDataProvider() {
-}
-
 bool DataFileRendererCldDataProvider::OnMessageReceived(
     const IPC::Message& message) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(DataFileRendererCldDataProvider, message)
   IPC_MESSAGE_HANDLER(ChromeViewMsg_CldDataFileAvailable, OnCldDataAvailable)
   IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
   return handled;
 }
 
@@ skipping 60 matching lines @@
   // Initialize the CLD subsystem... and it's all done!
   const uint8* data_ptr = g_cld_mmap.Get().value->data() + data_offset;
   CLD2::loadDataFromRawAddress(data_ptr, data_length);
   DCHECK(CLD2::isDataLoaded()) << "Failed to load CLD data from mmap";
   if (!cld_available_callback_.is_null()) {
     cld_available_callback_.Run();
   }
 }
 
 }  // namespace translate