Removed print_web_view_helper_win.cc

chrome/renderer/printing/print_web_view_helper_win.cc

Index: chrome/renderer/printing/print_web_view_helper_win.cc
diff --git a/chrome/renderer/printing/print_web_view_helper_win.cc b/chrome/renderer/printing/print_web_view_helper_win.cc
deleted file mode 100644
index 4e80461979614df6a42ef9ed0de7ea8952641021..0000000000000000000000000000000000000000
--- a/chrome/renderer/printing/print_web_view_helper_win.cc
+++ /dev/null
@@ -1,249 +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.
-
-#include "chrome/renderer/printing/print_web_view_helper.h"
-
-#include "base/logging.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/metrics/histogram.h"
-#include "base/process/process_handle.h"
-#include "base/win/scoped_gdi_object.h"
-#include "base/win/scoped_hdc.h"
-#include "base/win/scoped_select_object.h"
-#include "chrome/common/print_messages.h"
-#include "printing/metafile.h"
-#include "printing/metafile_impl.h"
-#include "printing/metafile_skia_wrapper.h"
-#include "printing/page_size_margins.h"
-#include "printing/units.h"
-#include "skia/ext/platform_device.h"
-#include "skia/ext/refptr.h"
-#include "skia/ext/vector_canvas.h"
-#include "third_party/WebKit/public/web/WebLocalFrame.h"
-#include "ui/gfx/gdi_util.h"
-#include "ui/gfx/point.h"
-#include "ui/gfx/rect.h"
-#include "ui/gfx/size.h"
-
-namespace printing {
-
-using blink::WebFrame;
-
-void PrintWebViewHelper::PrintPageInternal(
-    const PrintMsg_PrintPage_Params& params,
-    const gfx::Size& canvas_size,
-    WebFrame* frame) {
-  // Generate a memory-based metafile. It will use the current screen's DPI.
-  // Each metafile contains a single page.
-  scoped_ptr<NativeMetafile> metafile(new NativeMetafile);
-  metafile->Init();
-  DCHECK(metafile->context());
-  skia::InitializeDC(metafile->context());
-
-  int page_number = params.page_number;
-
-  // Calculate the dpi adjustment.
-  // Browser will render context using desired_dpi, so we need to calculate
-  // adjustment factor to play content on the printer DC later during the
-  // actual printing.
-  double actual_shrink = static_cast<float>(params.params.desired_dpi /
-                                            params.params.dpi);
-  gfx::Size page_size_in_dpi;
-  gfx::Rect content_area_in_dpi;
-
-  // Render page for printing.
-  RenderPage(params.params, page_number, frame, false, metafile.get(),
-             &actual_shrink, &page_size_in_dpi, &content_area_in_dpi);
-
-  // Close the device context to retrieve the compiled metafile.
-  if (!metafile->FinishDocument())
-    NOTREACHED();
-
-  if (!params.params.supports_alpha_blend && metafile->IsAlphaBlendUsed()) {
-    scoped_ptr<NativeMetafile> raster_metafile(
-        metafile->RasterizeAlphaBlend());
-    if (raster_metafile.get())
-      metafile.swap(raster_metafile);
-  }
-
-  // Get the size of the compiled metafile.
-  uint32 buf_size = metafile->GetDataSize();
-  DCHECK_GT(buf_size, 128u);
-
-  PrintHostMsg_DidPrintPage_Params page_params;
-  page_params.data_size = buf_size;
-  page_params.metafile_data_handle = NULL;
-  page_params.page_number = page_number;
-  page_params.document_cookie = params.params.document_cookie;
-  page_params.actual_shrink = actual_shrink;
-  page_params.page_size = page_size_in_dpi;
-  page_params.content_area = content_area_in_dpi;
-
-  if (!CopyMetafileDataToSharedMem(metafile.get(),
-                                   &(page_params.metafile_data_handle))) {
-    page_params.data_size = 0;
-  }
-
-  Send(new PrintHostMsg_DidPrintPage(routing_id(), page_params));
-}
-
-bool PrintWebViewHelper::RenderPreviewPage(
-    int page_number,
-    const PrintMsg_Print_Params& print_params) {
-  // Calculate the dpi adjustment.
-  double actual_shrink = static_cast<float>(print_params.desired_dpi /
-                                            print_params.dpi);
-  scoped_ptr<Metafile> draft_metafile;
-  Metafile* initial_render_metafile = print_preview_context_.metafile();
-
-  if (print_preview_context_.IsModifiable() && is_print_ready_metafile_sent_) {
-    draft_metafile.reset(new PreviewMetafile);
-    initial_render_metafile = draft_metafile.get();
-  }
-
-  base::TimeTicks begin_time = base::TimeTicks::Now();
-  RenderPage(print_params, page_number, print_preview_context_.prepared_frame(),
-             true, initial_render_metafile, &actual_shrink, NULL, NULL);
-  print_preview_context_.RenderedPreviewPage(
-      base::TimeTicks::Now() - begin_time);
-
-  if (draft_metafile.get()) {
-    draft_metafile->FinishDocument();
-  } else if (print_preview_context_.IsModifiable() &&
-             print_preview_context_.generate_draft_pages()) {
-    DCHECK(!draft_metafile.get());
-    draft_metafile.reset(
-        print_preview_context_.metafile()->GetMetafileForCurrentPage());
-  }
-  return PreviewPageRendered(page_number, draft_metafile.get());
-}
-
-void PrintWebViewHelper::RenderPage(
-    const PrintMsg_Print_Params& params, int page_number, WebFrame* frame,
-    bool is_preview, Metafile* metafile, double* actual_shrink,
-    gfx::Size* page_size_in_dpi, gfx::Rect* content_area_in_dpi) {
-  PageSizeMargins page_layout_in_points;
-  double css_scale_factor = 1.0f;
-  ComputePageLayoutInPointsForCss(frame, page_number, params,
-                                  ignore_css_margins_, &css_scale_factor,
-                                  &page_layout_in_points);
-  gfx::Size page_size;
-  gfx::Rect content_area;
-  GetPageSizeAndContentAreaFromPageLayout(page_layout_in_points, &page_size,
-                                          &content_area);
-  int dpi = static_cast<int>(params.dpi);
-  // Calculate the actual page size and content area in dpi.
-  if (page_size_in_dpi) {
-    *page_size_in_dpi = gfx::Size(
-        static_cast<int>(ConvertUnitDouble(page_size.width(), kPointsPerInch,
-                                           dpi)),
-        static_cast<int>(ConvertUnitDouble(page_size.height(), kPointsPerInch,
-                                           dpi)));
-  }
-
-  if (content_area_in_dpi) {
-    *content_area_in_dpi = gfx::Rect(
-        static_cast<int>(ConvertUnitDouble(content_area.x(), kPointsPerInch,
-                                           dpi)),
-        static_cast<int>(ConvertUnitDouble(content_area.y(), kPointsPerInch,
-                                           dpi)),
-        static_cast<int>(ConvertUnitDouble(content_area.width(), kPointsPerInch,
-                                           dpi)),
-        static_cast<int>(ConvertUnitDouble(content_area.height(),
-                                           kPointsPerInch, dpi)));
-  }
-
-  if (!is_preview) {
-    // Since WebKit extends the page width depending on the magical scale factor
-    // we make sure the canvas covers the worst case scenario (x2.0 currently).
-    // PrintContext will then set the correct clipping region.
-    page_size = gfx::Size(
-        static_cast<int>(page_layout_in_points.content_width *
-                         params.max_shrink),
-        static_cast<int>(page_layout_in_points.content_height *
-                         params.max_shrink));
-  }
-
-  float webkit_page_shrink_factor = frame->getPrintPageShrink(page_number);
-  float scale_factor = css_scale_factor * webkit_page_shrink_factor;
-
-  gfx::Rect canvas_area =
-      params.display_header_footer ? gfx::Rect(page_size) : content_area;
-
-  SkBaseDevice* device = metafile->StartPageForVectorCanvas(
-      page_size, canvas_area, scale_factor);
-  DCHECK(device);
-  // The printPage method may take a reference to the canvas we pass down, so it
-  // can't be a stack object.
-  skia::RefPtr<skia::VectorCanvas> canvas =
-      skia::AdoptRef(new skia::VectorCanvas(device));
-
-  if (is_preview) {
-    MetafileSkiaWrapper::SetMetafileOnCanvas(*canvas, metafile);
-    skia::SetIsDraftMode(*canvas, is_print_ready_metafile_sent_);
-    skia::SetIsPreviewMetafile(*canvas, is_preview);
-  }
-
-  if (params.display_header_footer) {
-    // |page_number| is 0-based, so 1 is added.
-    PrintHeaderAndFooter(canvas.get(), page_number + 1,
-        print_preview_context_.total_page_count(), scale_factor,
-        page_layout_in_points, *header_footer_info_, params);
-  }
-
-  float webkit_scale_factor = RenderPageContent(frame, page_number, canvas_area,
-                                                content_area, scale_factor,
-                                                canvas.get());
-
-  if (*actual_shrink <= 0 || webkit_scale_factor <= 0) {
-    NOTREACHED() << "Printing page " << page_number << " failed.";
-  } else {
-    // While rendering certain plugins (PDF) to metafile, we might need to
-    // set custom scale factor. Update |actual_shrink| with custom scale
-    // if it is set on canvas.
-    // TODO(gene): We should revisit this solution for the next versions.
-    // Consider creating metafile of the right size (or resizable)
-    // https://code.google.com/p/chromium/issues/detail?id=126037
-    if (!MetafileSkiaWrapper::GetCustomScaleOnCanvas(
-            *canvas, actual_shrink)) {
-      // Update the dpi adjustment with the "page |actual_shrink|" calculated in
-      // webkit.
-      *actual_shrink /= (webkit_scale_factor * css_scale_factor);
-    }
-  }
-
-  bool result = metafile->FinishPage();
-  DCHECK(result);
-}
-
-bool PrintWebViewHelper::CopyMetafileDataToSharedMem(
-    Metafile* metafile, base::SharedMemoryHandle* shared_mem_handle) {
-  uint32 buf_size = metafile->GetDataSize();
-  base::SharedMemory shared_buf;
-  if (buf_size >= kMetafileMaxSize) {
-    NOTREACHED() << "Buffer too large: " << buf_size;
-    return false;
-  }
-
-  // Allocate a shared memory buffer to hold the generated metafile data.
-  if (!shared_buf.CreateAndMapAnonymous(buf_size)) {
-    NOTREACHED() << "Buffer allocation failed";
-    return false;
-  }
-
-  // Copy the bits into shared memory.
-  if (!metafile->GetData(shared_buf.memory(), buf_size)) {
-    NOTREACHED() << "GetData() failed";
-    shared_buf.Unmap();
-    return false;
-  }
-  shared_buf.GiveToProcess(base::GetCurrentProcessHandle(), shared_mem_handle);
-  shared_buf.Unmap();
-
-  Send(new PrintHostMsg_DuplicateSection(routing_id(), *shared_mem_handle,
-                                         shared_mem_handle));
-  return true;
-}
-
-}  // namespace printing