Bug 1345243. Remove support for building without DirectWrite. r=bas

Now that we don't support XP it's reasonable for us to drop support for GDI
fonts and rely solely on DirectWrite. We should start this process by removing
support for building without DirectWrite.

gfx/cairo/cairo/src/moz.build

@@ -37,10 +37,9 @@ if CONFIG['MOZ_WIDGET_TOOLKIT'] == 'windows':
     EXPORTS.cairo += [
         'cairo-win32.h',
     ]
-    if CONFIG['MOZ_ENABLE_DWRITE_FONT']:
-        SOURCES += [
-            'cairo-dwrite-font.cpp',
-        ]
+    SOURCES += [
+        'cairo-dwrite-font.cpp',
+    ]
     if CONFIG['MOZ_ENABLE_D2D_SURFACE']:
         SOURCES += [
             'cairo-d2d-surface.cpp',

gfx/thebes/moz.build

@@ -145,6 +145,8 @@ elif CONFIG['MOZ_WIDGET_TOOLKIT'] == 'windows':
         'PrintTargetWindows.h',
     ]
     SOURCES += [
+        'gfxDWriteCommon.cpp',
+        'gfxDWriteFonts.cpp',
         'gfxGDIFont.cpp',
         'gfxGDIFontList.cpp',
         'gfxWindowsNativeDrawing.cpp',
@@ -153,14 +155,9 @@ elif CONFIG['MOZ_WIDGET_TOOLKIT'] == 'windows':
         'PrintTargetPDF.cpp',
         'PrintTargetWindows.cpp',
     ]
-    if CONFIG['MOZ_ENABLE_DWRITE_FONT']:
-        UNIFIED_SOURCES += [
-            'gfxDWriteFontList.cpp',
-        ]
-        SOURCES += [
-            'gfxDWriteCommon.cpp',
-            'gfxDWriteFonts.cpp',
-        ]
+    UNIFIED_SOURCES += [
+        'gfxDWriteFontList.cpp',
+    ]
 
 # Are we targeting x86 or x64?  If so, build gfxAlphaRecoverySSE2.cpp.
 if CONFIG['INTEL_ARCHITECTURE']:

old-configure.in

@@ -4884,7 +4884,6 @@ if test "$MOZ_TREE_CAIRO"; then
         WIN32_FONT_FEATURE="#define CAIRO_HAS_WIN32_FONT 1"
         WIN32_SURFACE_FEATURE="#define CAIRO_HAS_WIN32_SURFACE 1"
         MOZ_ENABLE_D2D_SURFACE=1
-        MOZ_ENABLE_DWRITE_FONT=1
 
         if test "$COMPILE_ENVIRONMENT"; then
 
@@ -4899,7 +4898,6 @@ if test "$MOZ_TREE_CAIRO"; then
         FC_FONT_FEATURE="#define CAIRO_HAS_FC_FONT 1"
     fi
     AC_SUBST(MOZ_ENABLE_CAIRO_FT)
-    AC_SUBST(MOZ_ENABLE_DWRITE_FONT)
     AC_SUBST(MOZ_ENABLE_D2D_SURFACE)
     AC_SUBST(MOZ_ENABLE_D3D10_LAYER)