Revert of Rewrite clipboard write IPC handling to be easier to understand.

content/renderer/renderer_clipboard_delegate.cc

Index: content/renderer/renderer_clipboard_delegate.cc
diff --git a/content/renderer/renderer_clipboard_delegate.cc b/content/renderer/renderer_clipboard_delegate.cc
deleted file mode 100644
index 503322045e9532621e00c4b94aaf042409d39db7..0000000000000000000000000000000000000000
--- a/content/renderer/renderer_clipboard_delegate.cc
+++ /dev/null
@@ -1,165 +0,0 @@
-// Copyright (c) 2012 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.
-
-// This file provides the embedder's side of the Clipboard interface.
-
-#include "content/renderer/renderer_clipboard_delegate.h"
-
-#include "base/memory/shared_memory.h"
-#include "base/numerics/safe_math.h"
-#include "content/common/clipboard_messages.h"
-#include "content/public/renderer/content_renderer_client.h"
-#include "content/renderer/render_thread_impl.h"
-#include "third_party/skia/include/core/SkBitmap.h"
-#include "ui/base/clipboard/clipboard.h"
-#include "ui/gfx/size.h"
-
-namespace content {
-
-RendererClipboardDelegate::RendererClipboardDelegate() {
-}
-
-uint64 RendererClipboardDelegate::GetSequenceNumber(ui::ClipboardType type) {
-  uint64 sequence_number = 0;
-  RenderThreadImpl::current()->Send(
-      new ClipboardHostMsg_GetSequenceNumber(type, &sequence_number));
-  return sequence_number;
-}
-
-bool RendererClipboardDelegate::IsFormatAvailable(
-    content::ClipboardFormat format,
-    ui::ClipboardType type) {
-  bool result = false;
-  RenderThreadImpl::current()->Send(
-      new ClipboardHostMsg_IsFormatAvailable(format, type, &result));
-  return result;
-}
-
-void RendererClipboardDelegate::Clear(ui::ClipboardType type) {
-  RenderThreadImpl::current()->Send(new ClipboardHostMsg_Clear(type));
-}
-
-void RendererClipboardDelegate::ReadAvailableTypes(
-    ui::ClipboardType type,
-    std::vector<base::string16>* types,
-    bool* contains_filenames) {
-  RenderThreadImpl::current()->Send(
-      new ClipboardHostMsg_ReadAvailableTypes(type, types, contains_filenames));
-}
-
-void RendererClipboardDelegate::ReadText(ui::ClipboardType type,
-                                         base::string16* result) {
-  RenderThreadImpl::current()->Send(
-      new ClipboardHostMsg_ReadText(type, result));
-}
-
-void RendererClipboardDelegate::ReadHTML(ui::ClipboardType type,
-                                         base::string16* markup,
-                                         GURL* url,
-                                         uint32* fragment_start,
-                                         uint32* fragment_end) {
-  RenderThreadImpl::current()->Send(new ClipboardHostMsg_ReadHTML(
-      type, markup, url, fragment_start, fragment_end));
-}
-
-void RendererClipboardDelegate::ReadRTF(ui::ClipboardType type,
-                                        std::string* result) {
-  RenderThreadImpl::current()->Send(new ClipboardHostMsg_ReadRTF(type, result));
-}
-
-void RendererClipboardDelegate::ReadImage(ui::ClipboardType type,
-                                          std::string* data) {
-  base::SharedMemoryHandle image_handle;
-  uint32 image_size = 0;
-  RenderThreadImpl::current()->Send(
-      new ClipboardHostMsg_ReadImage(type, &image_handle, &image_size));
-  if (base::SharedMemory::IsHandleValid(image_handle)) {
-    base::SharedMemory buffer(image_handle, true);
-    buffer.Map(image_size);
-    data->append(static_cast<char*>(buffer.memory()), image_size);
-  }
-}
-
-void RendererClipboardDelegate::ReadCustomData(ui::ClipboardType clipboard_type,
-                                               const base::string16& type,
-                                               base::string16* data) {
-  RenderThreadImpl::current()->Send(
-      new ClipboardHostMsg_ReadCustomData(clipboard_type, type, data));
-}
-
-void RendererClipboardDelegate::WriteText(ui::ClipboardType clipboard_type,
-                                          const base::string16& text) {
-  RenderThreadImpl::current()->Send(
-      new ClipboardHostMsg_WriteText(clipboard_type, text));
-}
-
-void RendererClipboardDelegate::WriteHTML(ui::ClipboardType clipboard_type,
-                                          const base::string16& markup,
-                                          const GURL& url) {
-  RenderThreadImpl::current()->Send(
-      new ClipboardHostMsg_WriteHTML(clipboard_type, markup, url));
-}
-
-void RendererClipboardDelegate::WriteSmartPasteMarker(
-    ui::ClipboardType clipboard_type) {
-  RenderThreadImpl::current()->Send(
-      new ClipboardHostMsg_WriteSmartPasteMarker(clipboard_type));
-}
-
-void RendererClipboardDelegate::WriteCustomData(
-    ui::ClipboardType clipboard_type,
-    const std::map<base::string16, base::string16>& data) {
-  RenderThreadImpl::current()->Send(
-      new ClipboardHostMsg_WriteCustomData(clipboard_type, data));
-}
-
-void RendererClipboardDelegate::WriteBookmark(ui::ClipboardType clipboard_type,
-                                              const GURL& url,
-                                              const base::string16& title) {
-  RenderThreadImpl::current()->Send(
-      new ClipboardHostMsg_WriteBookmark(clipboard_type, url, title));
-}
-
-bool RendererClipboardDelegate::WriteImage(ui::ClipboardType clipboard_type,
-                                           const SkBitmap& bitmap) {
-  // Only 32-bit bitmaps are supported.
-  DCHECK_EQ(bitmap.colorType(), kN32_SkColorType);
-
-  const gfx::Size size(bitmap.width(), bitmap.height());
-  scoped_ptr<base::SharedMemory> shared_buf;
-  {
-    SkAutoLockPixels locked(bitmap);
-    void* pixels = bitmap.getPixels();
-    // TODO(piman): this should not be NULL, but it is. crbug.com/369621
-    if (!pixels)
-      return false;
-
-    base::CheckedNumeric<uint32> checked_buf_size = 4;
-    checked_buf_size *= size.width();
-    checked_buf_size *= size.height();
-    if (!checked_buf_size.IsValid())
-      return false;
-
-    // Allocate a shared memory buffer to hold the bitmap bits.
-    uint32 buf_size = checked_buf_size.ValueOrDie();
-    shared_buf.reset(ChildThread::current()->AllocateSharedMemory(buf_size));
-    if (!shared_buf)
-      return false;
-    // Copy the bits into shared memory
-    DCHECK(shared_buf->memory());
-    memcpy(shared_buf->memory(), pixels, buf_size);
-    shared_buf->Unmap();
-  }
-
-  RenderThreadImpl::current()->Send(new ClipboardHostMsg_WriteImage(
-      clipboard_type, size, shared_buf->handle()));
-  return true;
-}
-
-void RendererClipboardDelegate::CommitWrite(ui::ClipboardType clipboard_type) {
-  RenderThreadImpl::current()->Send(
-      new ClipboardHostMsg_CommitWrite(clipboard_type));
-}
-
-}  // namespace content