Cloning a bunch of stuff from the native_client repository at r6528

ppapi/native_client/src/shared/ppapi_proxy/browser_globals.h

Index: ppapi/native_client/src/shared/ppapi_proxy/browser_globals.h
===================================================================
--- ppapi/native_client/src/shared/ppapi_proxy/browser_globals.h	(revision 0)
+++ ppapi/native_client/src/shared/ppapi_proxy/browser_globals.h	(revision 0)
@@ -0,0 +1,132 @@
+// Copyright (c) 2011 The Native Client Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef NATIVE_CLIENT_SRC_SHARED_PPAPI_PROXY_BROWSER_GLOBALS_H_
+#define NATIVE_CLIENT_SRC_SHARED_PPAPI_PROXY_BROWSER_GLOBALS_H_
+
+#include "ppapi/c/dev/ppb_cursor_control_dev.h"
+#include "ppapi/c/dev/ppb_find_dev.h"
+#include "ppapi/c/dev/ppb_graphics_3d_dev.h"
+#include "ppapi/c/dev/ppb_graphics_3d_trusted_dev.h"
+#include "ppapi/c/dev/ppb_font_dev.h"
+#include "ppapi/c/dev/ppb_memory_dev.h"
+#include "ppapi/c/dev/ppb_scrollbar_dev.h"
+#include "ppapi/c/dev/ppb_testing_dev.h"
+#include "ppapi/c/dev/ppb_var_deprecated.h"
+#include "ppapi/c/dev/ppb_widget_dev.h"
+#include "ppapi/c/dev/ppb_zoom_dev.h"
+#include "ppapi/c/pp_instance.h"
+#include "ppapi/c/pp_module.h"
+#include "ppapi/c/ppb.h"
+#include "ppapi/c/ppb_core.h"
+#include "ppapi/c/ppb_file_io.h"
+#include "ppapi/c/ppb_file_ref.h"
+#include "ppapi/c/ppb_file_system.h"
+#include "ppapi/c/ppb_graphics_2d.h"
+#include "ppapi/c/ppb_image_data.h"
+#include "ppapi/c/ppb_input_event.h"
+#include "ppapi/c/ppb_instance.h"
+#include "ppapi/c/ppb_messaging.h"
+#include "ppapi/c/ppb_url_loader.h"
+#include "ppapi/c/ppb_url_request_info.h"
+#include "ppapi/c/ppb_url_response_info.h"
+#include "ppapi/c/ppb_var.h"
+#include "ppapi/c/private/ppb_pdf.h"
+#include "ppapi/c/trusted/ppb_image_data_trusted.h"
+
+struct NaClSrpcRpc;
+struct NaClSrpcChannel;
+
+namespace ppapi_proxy {
+
+// These functions handle the browser-side (trusted code) mapping of a browser
+// Instance to instance-specific data, such as the SRPC communication channel.
+// These functions are called by the in-browser (trusted) plugin code, and are
+// always called from the main (foreground, UI, ...) thread. As such, they are
+// not thread-safe (they do not need to be).
+
+// BrowserPpp keeps browser side PPP_Instance specific information, such as the
+// channel used to talk to the instance.
+class BrowserPpp;
+
+// Returns true if the PPAPI Developer interface is enabled.
+// To enable, set the environment variable NACL_ENABLE_PPAPI_DEV=1
+// Note: Developer interfaces are _not_ enabled by default.
+bool DevInterfaceEnabled();
+
+// Associate a particular BrowserPpp with a PP_Instance value.  This allows the
+// browser side to look up information it needs to communicate with the stub.
+void SetBrowserPppForInstance(PP_Instance instance,
+                              BrowserPpp* browser_ppp);
+// When an instance is destroyed, this is called to remove the association, as
+// the stub will be destroyed by a call to Shutdown.
+void UnsetBrowserPppForInstance(PP_Instance instance);
+// Gets the BrowserPpp information remembered for a particular instance.
+BrowserPpp* LookupBrowserPppForInstance(PP_Instance instance);
+
+// To keep track of memory allocated by a particular module, we need to remember
+// the PP_Module corresponding to a particular NaClSrpcChannel*.
+void SetModuleIdForSrpcChannel(NaClSrpcChannel* channel, PP_Module module_id);
+// To call remote callbacks only when the proxy is up and running, we need to
+// remember the PP_Instance corresponding to a particular NaClSrpcChannel*.
+void SetInstanceIdForSrpcChannel(NaClSrpcChannel* channel,
+                                 PP_Instance instance_id);
+// Removes the association with a given channel.
+void UnsetModuleIdForSrpcChannel(NaClSrpcChannel* channel);
+void UnsetInstanceIdForSrpcChannel(NaClSrpcChannel* channel);
+// Looks up the association with a given channel.
+PP_Module LookupModuleIdForSrpcChannel(NaClSrpcChannel* channel);
+PP_Instance LookupInstanceIdForSrpcChannel(NaClSrpcChannel* channel);
+
+// Helpers for getting a pointer to the "main channel" for a specific nexe.
+NaClSrpcChannel* GetMainSrpcChannel(NaClSrpcRpc* upcall_rpc);
+NaClSrpcChannel* GetMainSrpcChannel(PP_Instance);
+
+// Invalidates the proxy and alerts the plugin about a dead nexe.
+void CleanUpAfterDeadNexe(PP_Instance instance);
+
+// Support for getting PPB_ browser interfaces.
+// Safe version CHECK's for NULL.
+void SetPPBGetInterface(PPB_GetInterface get_interface_function,
+                        bool dev_interface);
+const void* GetBrowserInterface(const char* interface_name);
+const void* GetBrowserInterfaceSafe(const char* interface_name);
+// Functions marked "shared" are to be provided by both the browser and the
+// plugin side of the proxy, so they can be used by the shared proxy code
+// under both trusted and untrusted compilation.
+const PPB_Core* PPBCoreInterface();  // shared
+const PPB_CursorControl_Dev* PPBCursorControlInterface();
+const PPB_FileIO* PPBFileIOInterface();
+const PPB_FileRef* PPBFileRefInterface();
+const PPB_FileSystem* PPBFileSystemInterface();
+const PPB_Find_Dev* PPBFindInterface();
+const PPB_Font_Dev* PPBFontInterface();
+const PPB_Graphics2D* PPBGraphics2DInterface();
+const PPB_Graphics3D_Dev* PPBGraphics3DInterface();
+const PPB_Graphics3DTrusted_Dev* PPBGraphics3DTrustedInterface();
+const PPB_ImageData* PPBImageDataInterface();
+const PPB_ImageDataTrusted* PPBImageDataTrustedInterface();
+const PPB_InputEvent* PPBInputEventInterface();
+const PPB_Instance* PPBInstanceInterface();
+const PPB_KeyboardInputEvent* PPBKeyboardInputEventInterface();
+const PPB_Memory_Dev* PPBMemoryInterface();  // shared
+const PPB_MouseInputEvent* PPBMouseInputEventInterface();
+const PPB_Messaging* PPBMessagingInterface();
+const PPB_PDF* PPBPDFInterface();
+const PPB_Scrollbar_Dev* PPBScrollbarInterface();
+const PPB_Testing_Dev* PPBTestingInterface();
+const PPB_URLLoader* PPBURLLoaderInterface();
+const PPB_URLRequestInfo* PPBURLRequestInfoInterface();
+const PPB_URLResponseInfo* PPBURLResponseInfoInterface();
+const PPB_Var* PPBVarInterface();  // shared
+const PPB_WheelInputEvent* PPBWheelInputEventInterface();
+const PPB_Widget_Dev* PPBWidgetInterface();
+const PPB_Zoom_Dev* PPBZoomInterface();
+
+// PPAPI constants used in the proxy.
+extern const PP_Resource kInvalidResourceId;
+
+}  // namespace ppapi_proxy
+
+#endif  // NATIVE_CLIENT_SRC_SHARED_PPAPI_PROXY_BROWSER_GLOBALS_H_