Roll pdfium, add GN build for pdf and pdfium.

pdf/BUILD.gn

Index: pdf/BUILD.gn
diff --git a/pdf/BUILD.gn b/pdf/BUILD.gn
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+# Copyright 2014 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.
+
+pdf_engine = 0  # 0 PDFium
+
+# TODO(GYP) need support for loadable modules
+shared_library("pdf") {
+  sources = [
+    "button.h",
+    "button.cc",
+    "chunk_stream.h",
+    "chunk_stream.cc",
+    "control.h",
+    "control.cc",
+    "document_loader.h",
+    "document_loader.cc",
+    "draw_utils.cc",
+    "draw_utils.h",
+    "fading_control.cc",
+    "fading_control.h",
+    "fading_controls.cc",
+    "fading_controls.h",
+    "instance.cc",
+    "instance.h",
+    "number_image_generator.cc",
+    "number_image_generator.h",
+    "out_of_process_instance.cc",
+    "out_of_process_instance.h",
+    "page_indicator.cc",
+    "page_indicator.h",
+    "paint_aggregator.cc",
+    "paint_aggregator.h",
+    "paint_manager.cc",
+    "paint_manager.h",
+    "pdf.cc",
+    "pdf.h",
+    "pdf.rc",
+    "progress_control.cc",
+    "progress_control.h",
+    "pdf_engine.h",
+    "preview_mode_client.cc",
+    "preview_mode_client.h",
+    "resource.h",
+    "resource_consts.h",
+    "thumbnail_control.cc",
+    "thumbnail_control.h",
+    "../chrome/browser/chrome_page_zoom_constants.cc",
+    "../content/common/page_zoom.cc",
+  ]
+
+  if (pdf_engine == 0) {
+    sources += [
+      "pdfium/pdfium_assert_matching_enums.cc",
+      "pdfium/pdfium_engine.cc",
+      "pdfium/pdfium_engine.h",
+      "pdfium/pdfium_mem_buffer_file_read.cc",
+      "pdfium/pdfium_mem_buffer_file_read.h",
+      "pdfium/pdfium_mem_buffer_file_write.cc",
+      "pdfium/pdfium_mem_buffer_file_write.h",
+      "pdfium/pdfium_page.cc",
+      "pdfium/pdfium_page.h",
+      "pdfium/pdfium_range.cc",
+      "pdfium/pdfium_range.h",
+    ]
+  }
+
+  if (is_win) {
+    defines = [ "COMPILE_CONTENT_STATICALLY" ]
+    cflags = [ "/wd4267" ]  # TODO(jschuh) size_t to int truncations.
+  }
+
+  if (is_mac) {
+    # TODO(GYP)
+    #'mac_bundle': 1,
+    #'product_name': 'PDF',
+    #'product_extension': 'plugin',
+    ## Strip the shipping binary of symbols so "Foxit" doesn't appear in
+    ## the binary.  Symbols are stored in a separate .dSYM.
+    #'variables': {
+    #  'mac_real_dsym': 1,
+    #},
+    #'sources+': [
+    #  'Info.plist'
+    #]
+    #'xcode_settings': {
+    #  'INFOPLIST_FILE': 'Info.plist',
+    #},
+  }
+
+  if (is_linux) {
+    # TODO(GYP)
+    ## Use a custom version script to prevent leaking the vendor name in
+    ## visible symbols.
+    #'ldflags': [
+    #  '-Wl,--version-script=<!(cd <(DEPTH) && pwd -P)/pdf/libpdf.map'
+    #],
+  }
+
+  deps = [
+    "//base",
+    "//net",
+    "//ppapi:ppapi_cpp",
+    "//third_party/pdfium",
+  ]
+}
+
+# TODO(GYP) pdf_linux_symbols target.