Localized Chromoting Host on Mac and Linux.

Re-landing r214379. Two additional fixes:
- HOST_PLUGIN_MIME_TYPE is passed unquoted making the code the uses it responsible for stringizing it.
- msvs_cygwin_shell is set to 0 to avoid cygpath changing "remoting_locales\nl.pak" to "remoting_ocales\nl.pak".

This CL implements generation of localizable strings from remoting_strings.grd file. Depending on the platform the localized resources are placed to:
- Mac: localized .string and .pak resources are added to each application bundle under 'Resources/<locale>.lproj'
- Linux: localized .pak files are placed under 'remoting_locales' directory next to the binary locading them.
- Windows: .rc resources are generated from .jinja2 templates and embedded into a relevant binary.

Chrome l10n and i18n APIs are used to retrieve the current locale and RTL flag (Mac & Linux). The it2me plugin sets the locale to match the locale of the browser.

Collateral changes:
- UiString is not used any more.
- Increased width of disconnect window message on Mac.
- The host plugin version is correctly reported on Mac.
- Dialogs use RTL templates in case of RTL languages. No more updating the templates dynamically (Windows).
- remoting_unittests.ResourcesTest now runs on Mac, LInux and Windows.
- '@' is used for variable substitutions by remoting_localize.py.
- HOST_PLUGIN_MIME_TYPE is defined in one place now.
- Deleted unused commong_resources.grd.

Mac installer and preference panel are not localized yet.

BUG=155204

Review URL: https://chromiumcodereview.appspot.com/21059003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@214855 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 48 insertions, 11 deletions

diff --git a/remoting/host/plugin/host_plugin.cc b/remoting/host/plugin/host_plugin.cc
index 80d7cce..0a8b161 100644
--- a/remoting/host/plugin/host_plugin.cc
+++ b/remoting/host/plugin/host_plugin.cc
@@ -15,7 +15,8 @@
 #include "base/strings/stringize_macros.h"
 #include "net/socket/ssl_server_socket.h"
 #include "remoting/base/plugin_thread_task_runner.h"
-#include "remoting/host/plugin/constants.h"
+#include "remoting/base/resources.h"
+#include "remoting/base/string_resources.h"
 #include "remoting/host/plugin/host_log_handler.h"
 #include "remoting/host/plugin/host_plugin_utils.h"
 #include "remoting/host/plugin/host_script_object.h"
@@ -25,6 +26,7 @@
 #include "third_party/npapi/bindings/npapi.h"
 #include "third_party/npapi/bindings/npfunctions.h"
 #include "third_party/npapi/bindings/npruntime.h"
+#include "ui/base/l10n/l10n_util.h"
 
 // Symbol export is handled with a separate def file on Windows.
 #if defined (__GNUC__) && __GNUC__ >= 4
@@ -56,8 +58,14 @@ using remoting::StringFromNPIdentifier;
 
 namespace {
 
+bool g_initialized = false;
+
 base::AtExitManager* g_at_exit_manager = NULL;
 
+// The plugin name and description returned by GetValue().
+std::string* g_ui_name = NULL;
+std::string* g_ui_description = NULL;
+
 // NPAPI plugin implementation for remoting host.
 // Documentation for most of the calls in this class can be found here:
 // https://developer.mozilla.org/en/Gecko_Plugin_API_Reference/Scripting_plugins
@@ -355,6 +363,36 @@ class HostNPPlugin : public remoting::PluginThreadTaskRunner::Delegate {
   base::Lock timers_lock_;
 };
 
+void InitializePlugin() {
+  if (g_initialized)
+    return;
+
+  g_initialized = true;
+  g_at_exit_manager = new base::AtExitManager;
+
+  // Init an empty command line for common objects that use it.
+  CommandLine::Init(0, NULL);
+
+  if (remoting::LoadResources("")) {
+    g_ui_name = new std::string(
+        l10n_util::GetStringUTF8(IDR_REMOTING_HOST_PLUGIN_NAME));
+    g_ui_description = new std::string(
+        l10n_util::GetStringUTF8(IDR_REMOTING_HOST_PLUGIN_DESCRIPTION));
+  } else {
+    g_ui_name = new std::string();
+    g_ui_description = new std::string();
+  }
+}
+
+void ShutdownPlugin() {
+  delete g_ui_name;
+  delete g_ui_description;
+
+  remoting::UnloadResources();
+
+  delete g_at_exit_manager;
+}
+
 // Utility functions to map NPAPI Entry Points to C++ Objects.
 HostNPPlugin* PluginFromInstance(NPP instance) {
   return reinterpret_cast<HostNPPlugin*>(instance->pdata);
@@ -408,17 +446,20 @@ NPError DestroyPlugin(NPP instance,
 }
 
 NPError GetValue(NPP instance, NPPVariable variable, void* value) {
+  // NP_GetValue() can be called before NP_Initialize().
+  InitializePlugin();
+
   switch(variable) {
   default:
     VLOG(2) << "GetValue - default " << variable;
     return NPERR_GENERIC_ERROR;
   case NPPVpluginNameString:
     VLOG(2) << "GetValue - name string";
-    *reinterpret_cast<const char**>(value) = HOST_PLUGIN_NAME;
+    *reinterpret_cast<const char**>(value) = g_ui_name->c_str();
     break;
   case NPPVpluginDescriptionString:
     VLOG(2) << "GetValue - description string";
-    *reinterpret_cast<const char**>(value) = HOST_PLUGIN_DESCRIPTION;
+    *reinterpret_cast<const char**>(value) = g_ui_description->c_str();
     break;
   case NPPVpluginNeedsXEmbed:
     VLOG(2) << "GetValue - NeedsXEmbed";
@@ -490,8 +531,7 @@ EXPORT NPError API_CALL NP_Initialize(NPNetscapeFuncs* npnetscape_funcs
 #endif
                             ) {
   VLOG(2) << "NP_Initialize";
-  if (g_at_exit_manager)
-    return NPERR_MODULE_LOAD_FAILED_ERROR;
+  InitializePlugin();
 
   if(npnetscape_funcs == NULL)
     return NPERR_INVALID_FUNCTABLE_ERROR;
@@ -499,13 +539,10 @@ EXPORT NPError API_CALL NP_Initialize(NPNetscapeFuncs* npnetscape_funcs
   if(((npnetscape_funcs->version & 0xff00) >> 8) > NP_VERSION_MAJOR)
     return NPERR_INCOMPATIBLE_VERSION_ERROR;
 
-  g_at_exit_manager = new base::AtExitManager;
   g_npnetscape_funcs = npnetscape_funcs;
 #if defined(OS_POSIX) && !defined(OS_MACOSX)
   NP_GetEntryPoints(nppfuncs);
 #endif
-  // Init an empty command line for common objects that use it.
-  CommandLine::Init(0, NULL);
 
 #if defined(OS_WIN)
   ui::EnableHighDPISupport();
@@ -516,15 +553,15 @@ EXPORT NPError API_CALL NP_Initialize(NPNetscapeFuncs* npnetscape_funcs
 
 EXPORT NPError API_CALL NP_Shutdown() {
   VLOG(2) << "NP_Shutdown";
-  delete g_at_exit_manager;
-  g_at_exit_manager = NULL;
+  ShutdownPlugin();
+
   return NPERR_NO_ERROR;
 }
 
 #if defined(OS_POSIX) && !defined(OS_MACOSX)
 EXPORT const char* API_CALL NP_GetMIMEDescription(void) {
   VLOG(2) << "NP_GetMIMEDescription";
-  return HOST_PLUGIN_MIME_TYPE "::";
+  return STRINGIZE(HOST_PLUGIN_MIME_TYPE) "::";
 }
 
 EXPORT NPError API_CALL NP_GetValue(void* npp,