Revert "Revert "Reland "Remove ContrastAdjust()."""chromium/3253chromium/3252

This reverts commit 978ba20ffd0d2b37bf02b9d86828fa701c0c02fa.

Reason for revert: I now have the new expected files for the
chrome test ready in
https://chromium-review.googlesource.com/c/chromium/src/+/742061
Landing this again and will immediately add a manual pdfium roll to
cl 742061 to unblock the deps roller.

Original change's description:
> Revert "Reland "Remove ContrastAdjust().""
> 
> This reverts commit d5ec7ab0cd0663184d6056bc6fc87c86ec345342.
> 
> Reason for revert: Did not mean to reland, just create the reland CL.
> 
> Original change's description:
> > Reland "Remove ContrastAdjust()."
> > 
> > Original change's description:
> > > Revert "Remove ContrastAdjust()."
> > > 
> > > This reverts commit 53d443f042b590ae2d920def16bc9daf66f8427d.
> > > 
> > > Reason for revert: Breaks PDFToPWGRasterBrowserTest
> > > 
> > > Original change's description:
> > > > Remove ContrastAdjust().
> > > > 
> > > > This post-processing increased the contrast of scaled-down features -
> > > > mainly lines and fonts, relative to the background. The effect does not
> > > > improved readability and in some cases makes the scaled-down version
> > > > look like a different document at a glance. Text that is normal
> > > > weight appears bold when scaled down in these cases.
> > > > 
> > > > Change-Id: I2544d45e2bcec25d6742d2a60c1316d8df08cce1
> > > > Reviewed-on: https://pdfium-review.googlesource.com/15471
> > > > Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
> > > > Reviewed-by: dsinclair <dsinclair@chromium.org>
> > > 
> > > TBR=bungeman@chromium.org,dsinclair@chromium.org,hnakashima@chromium.org
> > > 
> > > # Not skipping CQ checks because original CL landed > 1 day ago.
> > > 
> > > Change-Id: I7f61650bc6d917b3c6640da60f3f740ef4498de0
> > > Reviewed-on: https://pdfium-review.googlesource.com/16970
> > > Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
> > > Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
> > 
> > TBR=bungeman@chromium.org,dsinclair@chromium.org,hnakashima@chromium.org
> > 
> > Change-Id: I77d4377d30908d1e2d4dc842300a761072a5fbd4
> > No-Presubmit: true
> > No-Tree-Checks: true
> > No-Try: true
> > Reviewed-on: https://pdfium-review.googlesource.com/16990
> > Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
> > Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
> 
> TBR=bungeman@chromium.org,dsinclair@chromium.org,hnakashima@chromium.org
> 
> Change-Id: Ie2e91662a1e82c0a793952aab47c2acbde1596d4
> No-Presubmit: true
> No-Tree-Checks: true
> No-Try: true
> Reviewed-on: https://pdfium-review.googlesource.com/16991
> Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
> Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>

TBR=bungeman@chromium.org,dsinclair@chromium.org,hnakashima@chromium.org

Change-Id: Iaae451131043ee69052809680922fdac06a69458
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://pdfium-review.googlesource.com/16992
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>

1 files changed, 9 insertions, 9 deletions

diff --git a/fpdfsdk/fpdfedit_embeddertest.cpp b/fpdfsdk/fpdfedit_embeddertest.cpp
index 60db27ad0c..f1f02ffa6d 100644
--- a/fpdfsdk/fpdfedit_embeddertest.cpp
+++ b/fpdfsdk/fpdfedit_embeddertest.cpp
@@ -422,7 +422,7 @@ TEST_F(FPDFEditEmbeddertest, PathOnTopOfText) {
 #if _FX_PLATFORM_ == _FX_PLATFORM_APPLE_
   const char md5[] = "f9e6fa74230f234286bfcada9f7606d8";
 #else
-  const char md5[] = "bc6e6eb50dda4695ba0fb4d04ed82ada";
+  const char md5[] = "aa71b09b93b55f467f1290e5111babee";
 #endif
   CompareBitmap(bitmap, 200, 200, md5);
   FPDFBitmap_Destroy(bitmap);
@@ -551,7 +551,7 @@ TEST_F(FPDFEditEmbeddertest, AddStandardFontText) {
 #if _FX_PLATFORM_ == _FX_PLATFORM_APPLE_
   const char md5[] = "a4dddc1a3930fa694bbff9789dab4161";
 #else
-  const char md5[] = "7a35771853a1cbba38f6775807878625";
+  const char md5[] = "eacaa24573b8ce997b3882595f096f00";
 #endif
   CompareBitmap(page_bitmap, 612, 792, md5);
   FPDFBitmap_Destroy(page_bitmap);
@@ -569,9 +569,9 @@ TEST_F(FPDFEditEmbeddertest, AddStandardFontText) {
 #if _FX_PLATFORM_ == _FX_PLATFORM_APPLE_
   const char md5_2[] = "a5c4ace4c6f27644094813fe1441a21c";
 #elif _FX_PLATFORM_ == _FX_PLATFORM_WINDOWS_
-  const char md5_2[] = "b231b329a4b566fb9b42bfc15fe59bb7";
+  const char md5_2[] = "2587eac9a787e97a37636d54d11bd28d";
 #else
-  const char md5_2[] = "f85fae151851436072b7b3c6703e506a";
+  const char md5_2[] = "76fcc7d08aa15445efd2e2ceb7c6cc3b";
 #endif
   CompareBitmap(page_bitmap, 612, 792, md5_2);
   FPDFBitmap_Destroy(page_bitmap);
@@ -589,9 +589,9 @@ TEST_F(FPDFEditEmbeddertest, AddStandardFontText) {
 #if _FX_PLATFORM_ == _FX_PLATFORM_APPLE_
   const char md5_3[] = "40b3ef04f915ff4c4208948001763544";
 #elif _FX_PLATFORM_ == _FX_PLATFORM_WINDOWS_
-  const char md5_3[] = "ba874b3b137f984510c4e287ed4ba7ae";
+  const char md5_3[] = "7cb61ec112cf400b489360d443ffc9d2";
 #else
-  const char md5_3[] = "c5aed6a8ef05558c8c47d58c87cbcb46";
+  const char md5_3[] = "b8a21668f1dab625af7c072e07fcefc4";
 #endif
   CompareBitmap(page_bitmap, 612, 792, md5_3);
   FPDFBitmap_Destroy(page_bitmap);
@@ -892,7 +892,7 @@ TEST_F(FPDFEditEmbeddertest, AddTrueTypeFontText) {
 #if _FX_PLATFORM_ == _FX_PLATFORM_APPLE_
     const char md5[] = "17d2b6cd574cf66170b09c8927529a94";
 #else
-    const char md5[] = "1722c6a9deed953d730de9cd13dcbd55";
+    const char md5[] = "70592859010ffbf532a2237b8118bcc4";
 #endif  // _FX_PLATFORM_ == _FX_PLATFORM_APPLE_
     CompareBitmap(page_bitmap, 612, 792, md5);
     FPDFBitmap_Destroy(page_bitmap);
@@ -910,7 +910,7 @@ TEST_F(FPDFEditEmbeddertest, AddTrueTypeFontText) {
 #if _FX_PLATFORM_ == _FX_PLATFORM_APPLE_
   const char md5_2[] = "8eded4193ff1f0f77b8b600a825e97ea";
 #else
-  const char md5_2[] = "9d7885072058f6c3e68ecaf32e917f30";
+  const char md5_2[] = "c1d10cce1761c4a998a16b2562030568";
 #endif  // _FX_PLATFORM_ == _FX_PLATFORM_APPLE_
   CompareBitmap(page_bitmap2, 612, 792, md5_2);
   FPDFBitmap_Destroy(page_bitmap2);
@@ -985,7 +985,7 @@ TEST_F(FPDFEditEmbeddertest, AddCIDFontText) {
 
   // Check that the text renders properly.
   FPDF_BITMAP page_bitmap = RenderPage(page);
-  const char md5[] = "2bc6c1aaa2252e73246a75775ccf38c2";
+  const char md5[] = "c68cd79aa72bf83a7b25271370d46b21";
   CompareBitmap(page_bitmap, 612, 792, md5);
   FPDFBitmap_Destroy(page_bitmap);