win: Remove CefEnableHighDPISupport function (fixes issue #3452)

High-DPI support is now enabled by default in Chromium.

include/cef_api_hash.h

@@ -42,9 +42,9 @@
 // way that may cause binary incompatibility with other builds. The universal
 // hash value will change if any platform is affected whereas the platform hash
 // values will change only if that particular platform is affected.
-#define CEF_API_HASH_UNIVERSAL "3aeebca8c3036dc66e9100f9d19681908f39f321"
+#define CEF_API_HASH_UNIVERSAL "847b71b49130895cf4fb59fdb5be490ca29ef4ac"
 #if defined(OS_WIN)
-#define CEF_API_HASH_PLATFORM "5dcd05c3516709113ae110e1602907bd0e027802"
+#define CEF_API_HASH_PLATFORM "34ef9830e2b8dc5e4c930db28e279e2a70d9f4bf"
 #elif defined(OS_MAC)
 #define CEF_API_HASH_PLATFORM "9152ecd1a004d3c800af9c2ca12246554f91723c"
 #elif defined(OS_LINUX)

include/internal/cef_app_win.h

@@ -86,13 +86,6 @@ CEF_EXPORT int cef_run_main_with_preferred_stack_size(mainPtr main,
                                                       char* argv[]);
 #endif  // defined(ARCH_CPU_32_BITS)
 
-///
-/// Call during process startup to enable High-DPI support on Windows 7 or
-/// newer. Older versions of Windows should be left DPI-unaware because they do
-/// not support DirectWrite and GDI fonts are kerned very badly.
-///
-CEF_EXPORT void cef_enable_highdpi_support(void);
-
 ///
 /// Set to true (1) before calling Windows APIs like TrackPopupMenu that enter a
 /// modal message loop. Set to false (0) after exiting the modal message loop.

include/internal/cef_win.h

@@ -168,13 +168,6 @@ int CefRunWinMainWithPreferredStackSize(wWinMainPtr wWinMain,
 int CefRunMainWithPreferredStackSize(mainPtr main, int argc, char* argv[]);
 #endif  // defined(ARCH_CPU_32_BITS)
 
-///
-/// Call during process startup to enable High-DPI support on Windows 7 or
-/// newer. Older versions of Windows should be left DPI-unaware because they do
-/// not support DirectWrite and GDI fonts are kerned very badly.
-///
-void CefEnableHighDPISupport();
-
 ///
 /// Set to true before calling Windows APIs like TrackPopupMenu that enter a
 /// modal message loop. Set to false after exiting the modal message loop.

libcef/browser/context.cc

@@ -23,7 +23,6 @@
 #if BUILDFLAG(IS_WIN)
 #include "base/debug/alias.h"
 #include "base/strings/utf_string_conversions.h"
-#include "base/win/win_util.h"
 #include "chrome/chrome_elf/chrome_elf_main.h"
 #include "chrome/install_static/initialize_from_primary_module.h"
 #include "include/internal/cef_win.h"
@@ -401,10 +400,6 @@ int CefRunMainWithPreferredStackSize(mainPtr main, int argc, char* argv[]) {
 }
 #endif  // defined(ARCH_CPU_32_BITS)
 
-void CefEnableHighDPISupport() {
-  base::win::EnableHighDPISupport();
-}
-
 void CefSetOSModalLoop(bool osModalLoop) {
   // Verify that the context is in a valid state.
   if (!CONTEXT_STATE_VALID()) {

libcef_dll/libcef_dll2.cc

@@ -67,10 +67,6 @@ CEF_EXPORT int cef_run_main_with_preferred_stack_size(mainPtr main,
 }
 #endif  // defined(ARCH_CPU_32_BITS)
 
-CEF_EXPORT void cef_enable_highdpi_support() {
-  CefEnableHighDPISupport();
-}
-
 CEF_EXPORT void cef_set_osmodal_loop(int osModalLoop) {
   CefSetOSModalLoop(osModalLoop ? true : false);
 }

libcef_dll/wrapper/libcef_dll_wrapper2.cc

@@ -44,17 +44,6 @@ int CefRunMainWithPreferredStackSize(mainPtr main, int argc, char* argv[]) {
 }
 #endif  // defined(ARCH_CPU_32_BITS)
 
-NO_SANITIZE("cfi-icall") void CefEnableHighDPISupport() {
-  const char* api_hash = cef_api_hash(0);
-  if (strcmp(api_hash, CEF_API_HASH_PLATFORM)) {
-    // The libcef API hash does not match the current header API hash.
-    NOTREACHED();
-    return;
-  }
-
-  cef_enable_highdpi_support();
-}
-
 NO_SANITIZE("cfi-icall") void CefSetOSModalLoop(bool osModalLoop) {
   cef_set_osmodal_loop(osModalLoop);
 }

tests/cefclient/cefclient_win.cc

@@ -35,9 +35,6 @@ namespace client {
 namespace {
 
 int RunMain(HINSTANCE hInstance, int nCmdShow) {
-  // Enable High-DPI support on Windows 7 or newer.
-  CefEnableHighDPISupport();
-
   CefMainArgs main_args(hInstance);
 
   void* sandbox_info = nullptr;

tests/cefsimple/cefsimple_win.cc

@@ -46,9 +46,6 @@ int APIENTRY wWinMain(HINSTANCE hInstance,
   }
 #endif
 
-  // Enable High-DPI support on Windows 7 or newer.
-  CefEnableHighDPISupport();
-
   void* sandbox_info = nullptr;
 
 #if defined(CEF_USE_SANDBOX)

tests/ceftests/run_all_unittests.cc

@@ -142,11 +142,6 @@ int main(int argc, char* argv[]) {
   CefTestSuite test_suite(argc, argv);
 
 #if defined(OS_WIN)
-  if (test_suite.command_line()->HasSwitch("enable-high-dpi-support")) {
-    // Enable High-DPI support on Windows 7 and newer.
-    CefEnableHighDPISupport();
-  }
-
   CefMainArgs main_args(::GetModuleHandle(nullptr));
 #else
   CefMainArgs main_args(argc, argv);