Move RenderProcess to content.

chrome/renderer/render_process_impl.cc

Index: chrome/renderer/render_process_impl.cc
===================================================================
--- chrome/renderer/render_process_impl.cc	(revision 81674)
+++ chrome/renderer/render_process_impl.cc	(working copy)
@@ -1,347 +0,0 @@
-// Copyright (c) 2011 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 "build/build_config.h"
-
-#if defined(OS_WIN)
-#include <windows.h>
-#include <objidl.h>
-#include <mlang.h>
-#endif
-
-#include "chrome/renderer/render_process_impl.h"
-
-#include "base/basictypes.h"
-#include "base/command_line.h"
-#include "base/compiler_specific.h"
-#include "base/file_util.h"
-#include "base/message_loop.h"
-#include "base/metrics/histogram.h"
-#include "base/path_service.h"
-#include "base/sys_info.h"
-#include "base/utf_string_conversions.h"
-#include "crypto/nss_util.h"
-#include "chrome/common/chrome_switches.h"
-#include "chrome/common/chrome_paths.h"
-#include "chrome/common/render_messages.h"
-#include "content/common/view_messages.h"
-#include "content/renderer/render_thread.h"
-#include "content/renderer/render_view.h"
-#include "ipc/ipc_channel.h"
-#include "ipc/ipc_message_utils.h"
-#include "media/base/media.h"
-#include "media/base/media_switches.h"
-#include "skia/ext/platform_canvas.h"
-#include "ui/gfx/surface/transport_dib.h"
-#include "webkit/plugins/npapi/plugin_instance.h"
-#include "webkit/plugins/npapi/plugin_lib.h"
-#include "webkit/glue/webkit_glue.h"
-
-#if defined(OS_MACOSX)
-#include "base/mac/mac_util.h"
-#elif defined(OS_WIN)
-#include "app/win/iat_patch_function.h"
-#endif
-
-#if defined(OS_LINUX)
-#include "content/renderer/renderer_sandbox_support_linux.h"
-#endif
-
-#if defined(OS_WIN)
-
-static app::win::IATPatchFunction g_iat_patch_createdca;
-HDC WINAPI CreateDCAPatch(LPCSTR driver_name,
-                          LPCSTR device_name,
-                          LPCSTR output,
-                          const void* init_data) {
-  DCHECK(std::string("DISPLAY") == std::string(driver_name));
-  DCHECK(!device_name);
-  DCHECK(!output);
-  DCHECK(!init_data);
-
-  // CreateDC fails behind the sandbox, but not CreateCompatibleDC.
-  return CreateCompatibleDC(NULL);
-}
-
-static app::win::IATPatchFunction g_iat_patch_get_font_data;
-DWORD WINAPI GetFontDataPatch(HDC hdc,
-                              DWORD table,
-                              DWORD offset,
-                              LPVOID buffer,
-                              DWORD length) {
-  int rv = GetFontData(hdc, table, offset, buffer, length);
-  if (rv == GDI_ERROR && hdc) {
-    HFONT font = static_cast<HFONT>(GetCurrentObject(hdc, OBJ_FONT));
-
-    LOGFONT logfont;
-    if (GetObject(font, sizeof(LOGFONT), &logfont)) {
-      std::vector<char> font_data;
-      if (RenderThread::current()->Send(new ViewHostMsg_PreCacheFont(logfont)))
-        rv = GetFontData(hdc, table, offset, buffer, length);
-    }
-  }
-  return rv;
-}
-
-#endif
-
-RenderProcessImpl::RenderProcessImpl()
-    : ALLOW_THIS_IN_INITIALIZER_LIST(shared_mem_cache_cleaner_(
-          base::TimeDelta::FromSeconds(5),
-          this, &RenderProcessImpl::ClearTransportDIBCache)),
-      transport_dib_next_sequence_number_(0) {
-  in_process_plugins_ = InProcessPlugins();
-  for (size_t i = 0; i < arraysize(shared_mem_cache_); ++i)
-    shared_mem_cache_[i] = NULL;
-
-#if defined(OS_WIN)
-  // HACK:  See http://b/issue?id=1024307 for rationale.
-  if (GetModuleHandle(L"LPK.DLL") == NULL) {
-    // Makes sure lpk.dll is loaded by gdi32 to make sure ExtTextOut() works
-    // when buffering into a EMF buffer for printing.
-    typedef BOOL (__stdcall *GdiInitializeLanguagePack)(int LoadedShapingDLLs);
-    GdiInitializeLanguagePack gdi_init_lpk =
-        reinterpret_cast<GdiInitializeLanguagePack>(GetProcAddress(
-            GetModuleHandle(L"GDI32.DLL"),
-            "GdiInitializeLanguagePack"));
-    DCHECK(gdi_init_lpk);
-    if (gdi_init_lpk) {
-      gdi_init_lpk(0);
-    }
-  }
-#endif
-
-  // Out of process dev tools rely upon auto break behavior.
-  webkit_glue::SetJavaScriptFlags(
-      "--debugger-auto-break"
-      // Enable lazy in-memory profiling.
-      " --prof --prof-lazy --logfile=*");
-
-  const CommandLine& command_line = *CommandLine::ForCurrentProcess();
-  if (command_line.HasSwitch(switches::kJavaScriptFlags)) {
-    webkit_glue::SetJavaScriptFlags(
-        command_line.GetSwitchValueASCII(switches::kJavaScriptFlags));
-  }
-
-  if (command_line.HasSwitch(switches::kEnableWatchdog)) {
-    // TODO(JAR): Need to implement renderer IO msgloop watchdog.
-  }
-
-  if (command_line.HasSwitch(switches::kDumpHistogramsOnExit)) {
-    base::StatisticsRecorder::set_dump_on_exit(true);
-  }
-
-  // Note that under Linux, the media library will normally already have
-  // been initialized by the Zygote before this instance became a Renderer.
-  FilePath media_path;
-  if (PathService::Get(chrome::DIR_MEDIA_LIBS, &media_path))
-    media::InitializeMediaLibrary(media_path);
-
-#if !defined(OS_MACOSX)
-  // TODO(hclam): Add more checks here. Currently this is not used.
-  if (media::IsMediaLibraryInitialized() &&
-      CommandLine::ForCurrentProcess()->HasSwitch(
-          switches::kEnableOpenMax)) {
-    media::InitializeOpenMaxLibrary(media_path);
-  }
-#endif
-
-#if defined(OS_WIN)
-  // Need to patch a few functions for font loading to work correctly.
-  FilePath pdf;
-  if (PathService::Get(chrome::FILE_PDF_PLUGIN, &pdf) &&
-      file_util::PathExists(pdf)) {
-    g_iat_patch_createdca.Patch(
-        pdf.value().c_str(), "gdi32.dll", "CreateDCA", CreateDCAPatch);
-    g_iat_patch_get_font_data.Patch(
-        pdf.value().c_str(), "gdi32.dll", "GetFontData", GetFontDataPatch);
-  }
-#endif
-
-#if defined(OS_LINUX)
-  // Remoting requires NSS to function properly.
-
-  if (!command_line.HasSwitch(switches::kSingleProcess) &&
-      command_line.HasSwitch(switches::kEnableRemoting)) {
-#if defined(USE_NSS)
-    // We are going to fork to engage the sandbox and we have not loaded
-    // any security modules so it is safe to disable the fork check in NSS.
-    crypto::DisableNSSForkCheck();
-    crypto::ForceNSSNoDBInit();
-    crypto::EnsureNSSInit();
-#else
-    // TODO(bulach): implement openssl support.
-    NOTREACHED() << "Remoting is not supported for openssl";
-#endif
-  }
-#endif
-}
-
-RenderProcessImpl::~RenderProcessImpl() {
-  // TODO(port): Try and limit what we pull in for our non-Win unit test bundle.
-#ifndef NDEBUG
-  // log important leaked objects
-  webkit_glue::CheckForLeaks();
-#endif
-
-  GetShutDownEvent()->Signal();
-  ClearTransportDIBCache();
-}
-
-bool RenderProcessImpl::InProcessPlugins() {
-  const CommandLine& command_line = *CommandLine::ForCurrentProcess();
-#if defined(OS_LINUX)
-  // Plugin processes require a UI message loop, and the Linux message loop
-  // implementation only allows one UI loop per process.
-  if (command_line.HasSwitch(switches::kInProcessPlugins))
-    NOTIMPLEMENTED() << ": in process plugins not supported on Linux";
-  return command_line.HasSwitch(switches::kInProcessPlugins);
-#else
-  return command_line.HasSwitch(switches::kInProcessPlugins) ||
-         command_line.HasSwitch(switches::kSingleProcess);
-#endif
-}
-
-// -----------------------------------------------------------------------------
-// Platform specific code for dealing with bitmap transport...
-
-TransportDIB* RenderProcessImpl::CreateTransportDIB(size_t size) {
-#if defined(OS_WIN) || defined(OS_LINUX)
-  // Windows and Linux create transport DIBs inside the renderer
-  return TransportDIB::Create(size, transport_dib_next_sequence_number_++);
-#elif defined(OS_MACOSX)  // defined(OS_WIN) || defined(OS_LINUX)
-  // Mac creates transport DIBs in the browser, so we need to do a sync IPC to
-  // get one.  The TransportDIB is cached in the browser.
-  TransportDIB::Handle handle;
-  IPC::Message* msg = new ViewHostMsg_AllocTransportDIB(size, true, &handle);
-  if (!main_thread()->Send(msg))
-    return NULL;
-  if (handle.fd < 0)
-    return NULL;
-  return TransportDIB::Map(handle);
-#endif  // defined(OS_MACOSX)
-}
-
-void RenderProcessImpl::FreeTransportDIB(TransportDIB* dib) {
-  if (!dib)
-    return;
-
-#if defined(OS_MACOSX)
-  // On Mac we need to tell the browser that it can drop a reference to the
-  // shared memory.
-  IPC::Message* msg = new ViewHostMsg_FreeTransportDIB(dib->id());
-  main_thread()->Send(msg);
-#endif
-
-  delete dib;
-}
-
-// -----------------------------------------------------------------------------
-
-
-skia::PlatformCanvas* RenderProcessImpl::GetDrawingCanvas(
-    TransportDIB** memory, const gfx::Rect& rect) {
-  int width = rect.width();
-  int height = rect.height();
-  const size_t stride = skia::PlatformCanvas::StrideForWidth(rect.width());
-#if defined(OS_LINUX)
-  const size_t max_size = base::SysInfo::MaxSharedMemorySize();
-#else
-  const size_t max_size = 0;
-#endif
-
-  // If the requested size is too big, reduce the height. Ideally we might like
-  // to reduce the width as well to make the size reduction more "balanced", but
-  // it rarely comes up in practice.
-  if ((max_size != 0) && (height * stride > max_size))
-    height = max_size / stride;
-
-  const size_t size = height * stride;
-
-  if (!GetTransportDIBFromCache(memory, size)) {
-    *memory = CreateTransportDIB(size);
-    if (!*memory)
-      return NULL;
-  }
-
-  return (*memory)->GetPlatformCanvas(width, height);
-}
-
-void RenderProcessImpl::ReleaseTransportDIB(TransportDIB* mem) {
-  if (PutSharedMemInCache(mem)) {
-    shared_mem_cache_cleaner_.Reset();
-    return;
-  }
-
-  FreeTransportDIB(mem);
-}
-
-bool RenderProcessImpl::UseInProcessPlugins() const {
-  return in_process_plugins_;
-}
-
-bool RenderProcessImpl::HasInitializedMediaLibrary() const {
-  return media::IsMediaLibraryInitialized();
-}
-
-bool RenderProcessImpl::GetTransportDIBFromCache(TransportDIB** mem,
-                                             size_t size) {
-  // look for a cached object that is suitable for the requested size.
-  for (size_t i = 0; i < arraysize(shared_mem_cache_); ++i) {
-    if (shared_mem_cache_[i] &&
-        size <= shared_mem_cache_[i]->size()) {
-      *mem = shared_mem_cache_[i];
-      shared_mem_cache_[i] = NULL;
-      return true;
-    }
-  }
-
-  return false;
-}
-
-int RenderProcessImpl::FindFreeCacheSlot(size_t size) {
-  // simple algorithm:
-  //  - look for an empty slot to store mem, or
-  //  - if full, then replace smallest entry which is smaller than |size|
-  for (size_t i = 0; i < arraysize(shared_mem_cache_); ++i) {
-    if (shared_mem_cache_[i] == NULL)
-      return i;
-  }
-
-  size_t smallest_size = size;
-  int smallest_index = -1;
-
-  for (size_t i = 1; i < arraysize(shared_mem_cache_); ++i) {
-    const size_t entry_size = shared_mem_cache_[i]->size();
-    if (entry_size < smallest_size) {
-      smallest_size = entry_size;
-      smallest_index = i;
-    }
-  }
-
-  if (smallest_index != -1) {
-    FreeTransportDIB(shared_mem_cache_[smallest_index]);
-    shared_mem_cache_[smallest_index] = NULL;
-  }
-
-  return smallest_index;
-}
-
-bool RenderProcessImpl::PutSharedMemInCache(TransportDIB* mem) {
-  const int slot = FindFreeCacheSlot(mem->size());
-  if (slot == -1)
-    return false;
-
-  shared_mem_cache_[slot] = mem;
-  return true;
-}
-
-void RenderProcessImpl::ClearTransportDIBCache() {
-  for (size_t i = 0; i < arraysize(shared_mem_cache_); ++i) {
-    if (shared_mem_cache_[i]) {
-      FreeTransportDIB(shared_mem_cache_[i]);
-      shared_mem_cache_[i] = NULL;
-    }
-  }
-}