Printing: Move some printing code out of pdf/ and into printing/.

This code was stuck in pdf/ previously because the PDF plugin was
proprietary.

Add unit tests now that the code has been moved out.

Review URL: https://codereview.chromium.org/1421493002

Cr-Commit-Position: refs/heads/master@{#356600}

5 files changed, 531 insertions, 5 deletions

diff --git a/printing/BUILD.gn b/printing/BUILD.gn
index ca35327..d8255be 100644
--- a/printing/BUILD.gn
+++ b/printing/BUILD.gn
@@ -184,6 +184,11 @@ component("printing") {
     ]
 
     deps += [ ":printing_jni_headers" ]
+  } else {
+    sources += [
+      "pdf_transform.cc",
+      "pdf_transform.h",
+    ]
   }
 }
 
@@ -212,11 +217,6 @@ test("printing_unittests") {
 
   configs += [ "//build/config/compiler:no_size_t_to_int_warning" ]
 
-  if (use_cups) {
-    configs += [ ":cups" ]
-    sources += [ "backend/cups_helper_unittest.cc" ]
-  }
-
   deps = [
     ":printing",
     "//base/allocator",
@@ -228,6 +228,15 @@ test("printing_unittests") {
     "//ui/gfx:test_support",
     "//ui/gfx/geometry",
   ]
+
+  if (!is_android) {
+    sources += [ "pdf_transform_unittest.cc" ]
+  }
+
+  if (use_cups) {
+    configs += [ ":cups" ]
+    sources += [ "backend/cups_helper_unittest.cc" ]
+  }
 }
 
 if (use_cups) {
diff --git a/printing/pdf_transform.cc b/printing/pdf_transform.cc
new file mode 100644
index 0000000..f13a639
--- /dev/null
+++ b/printing/pdf_transform.cc
@@ -0,0 +1,123 @@
+// Copyright 2015 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 "printing/pdf_transform.h"
+
+#include <algorithm>
+
+#include "base/logging.h"
+#include "ui/gfx/geometry/rect.h"
+
+namespace printing {
+
+double CalculateScaleFactor(const gfx::Rect& content_rect,
+                            double src_width,
+                            double src_height,
+                            bool rotated) {
+  if (src_width == 0 || src_height == 0)
+    return 1.0;
+
+  double actual_source_page_width = rotated ? src_height : src_width;
+  double actual_source_page_height = rotated ? src_width : src_height;
+  double ratio_x = static_cast<double>(content_rect.width()) /
+                   actual_source_page_width;
+  double ratio_y = static_cast<double>(content_rect.height()) /
+                   actual_source_page_height;
+  return std::min(ratio_x, ratio_y);
+}
+
+void SetDefaultClipBox(bool rotated, ClipBox* clip_box) {
+  const int kDpi = 72;
+  const float kPaperWidth = 8.5 * kDpi;
+  const float kPaperHeight = 11 * kDpi;
+  clip_box->left = 0;
+  clip_box->bottom = 0;
+  clip_box->right = rotated ? kPaperHeight : kPaperWidth;
+  clip_box->top = rotated ? kPaperWidth : kPaperHeight;
+}
+
+void CalculateMediaBoxAndCropBox(bool rotated,
+                                 bool has_media_box,
+                                 bool has_crop_box,
+                                 printing::ClipBox* media_box,
+                                 printing::ClipBox* crop_box) {
+  if (!has_media_box && !has_crop_box) {
+    SetDefaultClipBox(rotated, crop_box);
+    SetDefaultClipBox(rotated, media_box);
+  } else if (has_crop_box && !has_media_box) {
+    *media_box = *crop_box;
+  } else if (has_media_box && !has_crop_box) {
+    *crop_box = *media_box;
+  }
+}
+
+ClipBox CalculateClipBoxBoundary(const ClipBox& media_box,
+                                 const ClipBox& crop_box) {
+  ClipBox clip_box;
+
+  // Clip |media_box| to the size of |crop_box|, but ignore |crop_box| if it is
+  // bigger than |media_box|.
+  clip_box.left =
+      (crop_box.left < media_box.left) ? media_box.left : crop_box.left;
+  clip_box.right =
+      (crop_box.right > media_box.right) ? media_box.right : crop_box.right;
+  clip_box.top = (crop_box.top > media_box.top) ? media_box.top : crop_box.top;
+  clip_box.bottom =
+      (crop_box.bottom < media_box.bottom) ? media_box.bottom : crop_box.bottom;
+  return clip_box;
+}
+
+void ScaleClipBox(double scale_factor, ClipBox* box) {
+  box->left *= scale_factor;
+  box->right *= scale_factor;
+  box->bottom *= scale_factor;
+  box->top *= scale_factor;
+}
+
+void CalculateScaledClipBoxOffset(const gfx::Rect& content_rect,
+                                  const ClipBox& source_clip_box,
+                                  double* offset_x,
+                                  double* offset_y) {
+  const float clip_box_width = source_clip_box.right - source_clip_box.left;
+  const float clip_box_height = source_clip_box.top - source_clip_box.bottom;
+
+  // Center the intended clip region to real clip region.
+  *offset_x = (content_rect.width() - clip_box_width) / 2 + content_rect.x() -
+              source_clip_box.left;
+  *offset_y = (content_rect.height() - clip_box_height) / 2 + content_rect.y() -
+              source_clip_box.bottom;
+}
+
+void CalculateNonScaledClipBoxOffset(const gfx::Rect& content_rect,
+                                     int rotation,
+                                     int page_width,
+                                     int page_height,
+                                     const ClipBox& source_clip_box,
+                                     double* offset_x,
+                                     double* offset_y) {
+  // Align the intended clip region to left-top corner of real clip region.
+  switch (rotation) {
+    case 0:
+      *offset_x = -1 * source_clip_box.left;
+      *offset_y = page_height - source_clip_box.top;
+      break;
+    case 1:
+      *offset_x = 0;
+      *offset_y = -1 * source_clip_box.bottom;
+      break;
+    case 2:
+      *offset_x = page_width - source_clip_box.right;
+      *offset_y = 0;
+      break;
+    case 3:
+      *offset_x = page_height - source_clip_box.right;
+      *offset_y = page_width - source_clip_box.top;
+      break;
+    default:
+      NOTREACHED();
+      break;
+  }
+}
+
+}  // namespace printing
diff --git a/printing/pdf_transform.h b/printing/pdf_transform.h
new file mode 100644
index 0000000..2cc244b
--- /dev/null
+++ b/printing/pdf_transform.h
@@ -0,0 +1,104 @@
+// Copyright 2015 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.
+
+#ifndef PRINTING_PDF_TRANSFORM_H_
+#define PRINTING_PDF_TRANSFORM_H_
+
+#include "printing/printing_export.h"
+
+namespace gfx {
+class Rect;
+}
+
+namespace printing {
+
+// A rect struct for use with FPDF bounding box functions.
+// With PDFs, origin is bottom-left.
+struct PRINTING_EXPORT ClipBox {
+  float left;
+  float right;
+  float top;
+  float bottom;
+};
+
+// Calculate the scale factor between |content_rect| and a page of size
+// |src_width| x |src_height|.
+//
+// |content_rect| specifies the printable area of the destination page, with
+// origin at left-bottom. Values are in points.
+// |src_width| specifies the source page width in points.
+// |src_height| specifies the source page height in points.
+// |rotated| True if source page is rotated 90 degree or 270 degree.
+PRINTING_EXPORT double CalculateScaleFactor(const gfx::Rect& content_rect,
+                                            double src_width,
+                                            double src_height,
+                                            bool rotated);
+
+// Make the default size to be letter size (8.5" X 11"). We are just following
+// the PDFium way of handling these corner cases. PDFium always consider
+// US-Letter as the default page size.
+PRINTING_EXPORT void SetDefaultClipBox(bool rotated, ClipBox* clip_box);
+
+// Set the media box and/or crop box as needed. If both boxes are there, then
+// nothing needs to be done. If one box is missing, then fill it with the value
+// from the other box. If both boxes are missing, then they both get the default
+// value from SetDefaultClipBox(), based on |rotated|.
+PRINTING_EXPORT void CalculateMediaBoxAndCropBox(bool rotated,
+                                                 bool has_media_box,
+                                                 bool has_crop_box,
+                                                 printing::ClipBox* media_box,
+                                                 printing::ClipBox* crop_box);
+
+// Compute source clip box boundaries based on the crop box / media box of
+// source page and scale factor.
+// Returns the computed source clip box values.
+//
+// |media_box| The PDF's media box.
+// |crop_box| The PDF's crop box.
+PRINTING_EXPORT ClipBox CalculateClipBoxBoundary(const ClipBox& media_box,
+                                                 const ClipBox& crop_box);
+
+// Scale |box| by |scale_factor|.
+PRINTING_EXPORT void ScaleClipBox(double scale_factor, ClipBox* box);
+
+// Calculate the clip box translation offset for a page that does need to be
+// scaled. All parameters are in points.
+//
+// |content_rect| specifies the printable area of the destination page, with
+// origin at left-bottom.
+// |source_clip_box| specifies the source clip box positions, relative to
+// origin at left-bottom.
+// |offset_x| and |offset_y| will contain the final translation offsets for the
+// source clip box, relative to origin at left-bottom.
+PRINTING_EXPORT void CalculateScaledClipBoxOffset(
+    const gfx::Rect& content_rect,
+    const ClipBox& source_clip_box,
+    double* offset_x,
+    double* offset_y);
+
+// Calculate the clip box offset for a page that does not need to be scaled.
+// All parameters are in points.
+//
+// |content_rect| specifies the printable area of the destination page, with
+// origin at left-bottom.
+// |rotation| specifies the source page rotation values which are N / 90
+// degrees.
+// |page_width| specifies the screen destination page width.
+// |page_height| specifies the screen destination page height.
+// |source_clip_box| specifies the source clip box positions, relative to origin
+// at left-bottom.
+// |offset_x| and |offset_y| will contain the final translation offsets for the
+// source clip box, relative to origin at left-bottom.
+PRINTING_EXPORT void CalculateNonScaledClipBoxOffset(
+    const gfx::Rect& content_rect,
+    int rotation,
+    int page_width,
+    int page_height,
+    const ClipBox& source_clip_box,
+    double* offset_x,
+    double* offset_y);
+
+}  // namespace printing
+
+#endif  // PRINTING_PDF_TRANSFORM_H_
diff --git a/printing/pdf_transform_unittest.cc b/printing/pdf_transform_unittest.cc
new file mode 100644
index 0000000..3c91c78
--- /dev/null
+++ b/printing/pdf_transform_unittest.cc
@@ -0,0 +1,282 @@
+// Copyright 2015 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 "printing/pdf_transform.h"
+
+#include "printing/units.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "ui/gfx/geometry/rect.h"
+
+namespace printing {
+
+namespace {
+
+const float kDefaultWidth = 8.5 * kPointsPerInch;
+const float kDefaultHeight = 11.0 * kPointsPerInch;
+const float kDefaultRatio = kDefaultWidth / kDefaultHeight;
+const double kTolerance = 0.0001;
+
+void ExpectDefaultPortraitBox(const ClipBox& box) {
+  EXPECT_FLOAT_EQ(0, box.left);
+  EXPECT_FLOAT_EQ(kDefaultWidth, box.right);
+  EXPECT_FLOAT_EQ(kDefaultHeight, box.top);
+  EXPECT_FLOAT_EQ(0, box.bottom);
+}
+
+void ExpectDefaultLandscapeBox(const ClipBox& box) {
+  EXPECT_FLOAT_EQ(0, box.left);
+  EXPECT_FLOAT_EQ(kDefaultHeight, box.right);
+  EXPECT_FLOAT_EQ(kDefaultWidth, box.top);
+  EXPECT_FLOAT_EQ(0, box.bottom);
+}
+
+void ExpectBoxesAreEqual(const ClipBox& expected, const ClipBox& actual) {
+  EXPECT_FLOAT_EQ(expected.left, actual.left);
+  EXPECT_FLOAT_EQ(expected.right, actual.right);
+  EXPECT_FLOAT_EQ(expected.top, actual.top);
+  EXPECT_FLOAT_EQ(expected.bottom, actual.bottom);
+}
+
+void InitializeBoxToInvalidValues(ClipBox* box) {
+  box->left = box->right = box->top = box->bottom = -1;
+}
+
+void InitializeBoxToDefaultPortraitValues(ClipBox* box) {
+  box->left = 0;
+  box->right = kDefaultWidth;
+  box->top = kDefaultHeight;
+  box->bottom = 0;
+}
+
+void InitializeBoxToDefaultLandscapeValue(ClipBox* box) {
+  box->left = 0;
+  box->right = kDefaultHeight;
+  box->top = kDefaultWidth;
+  box->bottom = 0;
+}
+
+}  // namespace
+
+TEST(PdfTransformTest, CalculateScaleFactor) {
+  gfx::Rect rect(kDefaultWidth, kDefaultHeight);
+  double scale;
+
+  // 1:1
+  scale = CalculateScaleFactor(rect, kDefaultWidth, kDefaultHeight, false);
+  EXPECT_NEAR(1, scale, kTolerance);
+  scale = CalculateScaleFactor(rect, kDefaultWidth, kDefaultHeight, true);
+  EXPECT_NEAR(kDefaultRatio, scale, kTolerance);
+
+  // 1:2
+  rect = gfx::Rect(kDefaultWidth / 2, kDefaultHeight / 2);
+  scale = CalculateScaleFactor(rect, kDefaultWidth, kDefaultHeight, false);
+  EXPECT_NEAR(0.5, scale, kTolerance);
+  scale = CalculateScaleFactor(rect, kDefaultWidth, kDefaultHeight, true);
+  EXPECT_NEAR(kDefaultRatio / 2, scale, kTolerance);
+
+  // 3:1
+  rect = gfx::Rect(kDefaultWidth * 3, kDefaultHeight * 3);
+  scale = CalculateScaleFactor(rect, kDefaultWidth, kDefaultHeight, false);
+  EXPECT_NEAR(3, scale, kTolerance);
+  scale = CalculateScaleFactor(rect, kDefaultWidth, kDefaultHeight, true);
+  EXPECT_NEAR(kDefaultRatio * 3, scale, kTolerance);
+
+  // 3:1, rotated.
+  rect = gfx::Rect(kDefaultHeight * 3, kDefaultWidth * 3);
+  scale = CalculateScaleFactor(rect, kDefaultWidth, kDefaultHeight, false);
+  EXPECT_NEAR(kDefaultRatio * 3, scale, kTolerance);
+  scale = CalculateScaleFactor(rect, kDefaultWidth, kDefaultHeight, true);
+  EXPECT_NEAR(3, scale, kTolerance);
+
+  // Odd size
+  rect = gfx::Rect(10, 1000);
+  scale = CalculateScaleFactor(rect, kDefaultWidth, kDefaultHeight, false);
+  EXPECT_NEAR(0.01634, scale, kTolerance);
+  scale = CalculateScaleFactor(rect, kDefaultWidth, kDefaultHeight, true);
+  EXPECT_NEAR(0.01263, scale, kTolerance);
+}
+
+TEST(PdfTransformTest, SetDefaultClipBox) {
+  ClipBox box;
+
+  SetDefaultClipBox(false, &box);
+  ExpectDefaultPortraitBox(box);
+
+  SetDefaultClipBox(true, &box);
+  ExpectDefaultLandscapeBox(box);
+}
+
+TEST(PdfTransformTest, CalculateMediaBoxAndCropBox) {
+  ClipBox media_box;
+  ClipBox crop_box;
+
+  // Assume both boxes are there.
+  InitializeBoxToDefaultPortraitValues(&media_box);
+  InitializeBoxToDefaultLandscapeValue(&crop_box);
+  CalculateMediaBoxAndCropBox(true, true, true, &media_box, &crop_box);
+  ExpectDefaultPortraitBox(media_box);
+  ExpectDefaultLandscapeBox(crop_box);
+
+  // Assume both boxes are missing.
+  InitializeBoxToInvalidValues(&media_box);
+  InitializeBoxToInvalidValues(&crop_box);
+  CalculateMediaBoxAndCropBox(false, false, false, &media_box, &crop_box);
+  ExpectDefaultPortraitBox(media_box);
+  ExpectDefaultPortraitBox(crop_box);
+  CalculateMediaBoxAndCropBox(true, false, false, &media_box, &crop_box);
+  ExpectDefaultLandscapeBox(media_box);
+  ExpectDefaultLandscapeBox(crop_box);
+
+  // Assume crop box is missing.
+  ClipBox expected_box;
+  expected_box.left = 0;
+  expected_box.right = 42;
+  expected_box.top = 420;
+  expected_box.bottom = 0;
+  media_box = expected_box;
+  InitializeBoxToInvalidValues(&crop_box);
+  CalculateMediaBoxAndCropBox(false, true, false, &media_box, &crop_box);
+  ExpectBoxesAreEqual(expected_box, media_box);
+  ExpectBoxesAreEqual(expected_box, crop_box);
+
+  // Assume media box is missing.
+  InitializeBoxToInvalidValues(&media_box);
+  CalculateMediaBoxAndCropBox(false, false, true, &media_box, &crop_box);
+  ExpectBoxesAreEqual(expected_box, media_box);
+  ExpectBoxesAreEqual(expected_box, crop_box);
+}
+
+TEST(PdfTransformTest, CalculateClipBoxBoundary) {
+  ClipBox media_box;
+  ClipBox crop_box;
+  ClipBox result;
+
+  // media box and crop box are the same.
+  InitializeBoxToDefaultPortraitValues(&media_box);
+  InitializeBoxToDefaultPortraitValues(&crop_box);
+  result = CalculateClipBoxBoundary(media_box, crop_box);
+  ExpectDefaultPortraitBox(result);
+
+  // media box is portrait and crop box is landscape.
+  InitializeBoxToDefaultLandscapeValue(&crop_box);
+  result = CalculateClipBoxBoundary(media_box, crop_box);
+  EXPECT_FLOAT_EQ(0, result.left);
+  EXPECT_FLOAT_EQ(kDefaultWidth, result.right);
+  EXPECT_FLOAT_EQ(kDefaultWidth, result.top);
+  EXPECT_FLOAT_EQ(0, result.bottom);
+
+  // crop box is smaller than media box.
+  crop_box.left = 0;
+  crop_box.right = 100;
+  crop_box.bottom = 0;
+  crop_box.top = 200;
+  result = CalculateClipBoxBoundary(media_box, crop_box);
+  EXPECT_FLOAT_EQ(0, result.left);
+  EXPECT_FLOAT_EQ(100, result.right);
+  EXPECT_FLOAT_EQ(200, result.top);
+  EXPECT_FLOAT_EQ(0, result.bottom);
+
+  // crop box is smaller than the media box in one dimension and longer in the
+  // other.
+  crop_box.left = 0;
+  crop_box.right = 100;
+  crop_box.bottom = 0;
+  crop_box.top = 2000;
+  result = CalculateClipBoxBoundary(media_box, crop_box);
+  EXPECT_FLOAT_EQ(0, result.left);
+  EXPECT_FLOAT_EQ(100, result.right);
+  EXPECT_FLOAT_EQ(kDefaultHeight, result.top);
+  EXPECT_FLOAT_EQ(0, result.bottom);
+}
+
+TEST(PdfTransformTest, CalculateScaledClipBoxOffset) {
+  gfx::Rect rect(kDefaultWidth, kDefaultHeight);
+  ClipBox clip_box;
+  double offset_x;
+  double offset_y;
+
+  // |rect| and |clip_box| are the same size.
+  InitializeBoxToDefaultPortraitValues(&clip_box);
+  CalculateScaledClipBoxOffset(rect, clip_box, &offset_x, &offset_y);
+  EXPECT_DOUBLE_EQ(0, offset_x);
+  EXPECT_DOUBLE_EQ(0, offset_y);
+
+  // |rect| is larger than |clip_box|.
+  clip_box.top /= 2;
+  clip_box.right /= 4;
+  CalculateScaledClipBoxOffset(rect, clip_box, &offset_x, &offset_y);
+  EXPECT_DOUBLE_EQ(229.5, offset_x);
+  EXPECT_DOUBLE_EQ(198, offset_y);
+}
+
+TEST(PdfTransformTest, CalculateNonScaledClipBoxOffset) {
+  int page_width = kDefaultWidth;
+  int page_height = kDefaultHeight;
+  gfx::Rect rect(kDefaultWidth, kDefaultHeight);
+  ClipBox clip_box;
+  double offset_x;
+  double offset_y;
+
+  // |rect|, page size and |clip_box| are the same.
+  InitializeBoxToDefaultPortraitValues(&clip_box);
+  CalculateNonScaledClipBoxOffset(
+      rect, 0, page_width, page_height, clip_box, &offset_x, &offset_y);
+  EXPECT_DOUBLE_EQ(0, offset_x);
+  EXPECT_DOUBLE_EQ(0, offset_y);
+  CalculateNonScaledClipBoxOffset(
+      rect, 1, page_width, page_height, clip_box, &offset_x, &offset_y);
+  EXPECT_DOUBLE_EQ(0, offset_x);
+  EXPECT_DOUBLE_EQ(0, offset_y);
+  CalculateNonScaledClipBoxOffset(
+      rect, 2, page_width, page_height, clip_box, &offset_x, &offset_y);
+  EXPECT_DOUBLE_EQ(0, offset_x);
+  EXPECT_DOUBLE_EQ(0, offset_y);
+  CalculateNonScaledClipBoxOffset(
+      rect, 3, page_width, page_height, clip_box, &offset_x, &offset_y);
+  EXPECT_DOUBLE_EQ(180, offset_x);
+  EXPECT_DOUBLE_EQ(-180, offset_y);
+
+  // Smaller |clip_box|.
+  clip_box.top /= 4;
+  clip_box.right /= 2;
+  CalculateNonScaledClipBoxOffset(
+      rect, 0, page_width, page_height, clip_box, &offset_x, &offset_y);
+  EXPECT_DOUBLE_EQ(0, offset_x);
+  EXPECT_DOUBLE_EQ(594, offset_y);
+  CalculateNonScaledClipBoxOffset(
+      rect, 1, page_width, page_height, clip_box, &offset_x, &offset_y);
+  EXPECT_DOUBLE_EQ(0, offset_x);
+  EXPECT_DOUBLE_EQ(0, offset_y);
+  CalculateNonScaledClipBoxOffset(
+      rect, 2, page_width, page_height, clip_box, &offset_x, &offset_y);
+  EXPECT_DOUBLE_EQ(306, offset_x);
+  EXPECT_DOUBLE_EQ(0, offset_y);
+  CalculateNonScaledClipBoxOffset(
+      rect, 3, page_width, page_height, clip_box, &offset_x, &offset_y);
+  EXPECT_DOUBLE_EQ(486, offset_x);
+  EXPECT_DOUBLE_EQ(414, offset_y);
+
+  // Larger page size.
+  InitializeBoxToDefaultPortraitValues(&clip_box);
+  page_width += 10;
+  page_height += 20;
+  CalculateNonScaledClipBoxOffset(
+      rect, 0, page_width, page_height, clip_box, &offset_x, &offset_y);
+  EXPECT_DOUBLE_EQ(0, offset_x);
+  EXPECT_DOUBLE_EQ(20, offset_y);
+  CalculateNonScaledClipBoxOffset(
+      rect, 1, page_width, page_height, clip_box, &offset_x, &offset_y);
+  EXPECT_DOUBLE_EQ(0, offset_x);
+  EXPECT_DOUBLE_EQ(0, offset_y);
+  CalculateNonScaledClipBoxOffset(
+      rect, 2, page_width, page_height, clip_box, &offset_x, &offset_y);
+  EXPECT_DOUBLE_EQ(10, offset_x);
+  EXPECT_DOUBLE_EQ(0, offset_y);
+  CalculateNonScaledClipBoxOffset(
+      rect, 3, page_width, page_height, clip_box, &offset_x, &offset_y);
+  EXPECT_DOUBLE_EQ(200, offset_x);
+  EXPECT_DOUBLE_EQ(-170, offset_y);
+}
+
+}  // namespace printing
diff --git a/printing/printing.gyp b/printing/printing.gyp
index e87fe9c..e2c2883 100644
--- a/printing/printing.gyp
+++ b/printing/printing.gyp
@@ -201,6 +201,11 @@
           'dependencies': [
             'printing_jni_headers',
           ],
+        }, {
+          'sources': [
+            'pdf_transform.cc',
+            'pdf_transform.h',
+          ],
         }],
       ],
     },
@@ -232,6 +237,9 @@
       'conditions': [
         ['OS!="mac"', {'sources/': [['exclude', '_mac_unittest\\.(cc|mm?)$']]}],
         ['OS!="win"', {'sources/': [['exclude', '_win_unittest\\.cc$']]}],
+        ['OS!="android"', {
+          'sources': ['pdf_transform_unittest.cc']
+        }],
         ['use_cups==1', {
           'defines': [
             'USE_CUPS',