Draw text field theme for GtkViewsTextView.

src/platform/theme/theme_draw.cc

Index: src/platform/theme/theme_draw.cc
diff --git a/src/platform/theme/theme_draw.cc b/src/platform/theme/theme_draw.cc
index 34c36e9b92394175a7838e0ebad0720e1bd5388f..96e8a82370bdae7fac94e44ffadb1f25923f1451 100644
--- a/src/platform/theme/theme_draw.cc
+++ b/src/platform/theme/theme_draw.cc
@@ -218,7 +218,7 @@ static const double TEXT_GRADIENT_G2 = 1;
 static const double TEXT_GRADIENT_B2 = 1;
 
 static const double TEXT_GRADIENT_STOP_0 = 0;
-static const double TEXT_GRADIENT_STOP_1 = .2;
+static const double TEXT_GRADIENT_STOP_1_PIXEL = 4;
 static const double TEXT_GRADIENT_STOP_2 = 1;
 
 static const double TREE_ITEM_BG_R = 1;
@@ -441,11 +441,13 @@ static void DrawTextBorder(cairo_t* cr,
 
   AddRoundedRectPath(cr, w, h, stroke_width, BORDER_CORNER_RADIUS);
 
+  double text_gradient_stop_1 = h ? TEXT_GRADIENT_STOP_1_PIXEL / h : 0;
+
   ScopedPattern pattern(cairo_pattern_create_linear(0, 0, 0, h));
   cairo_pattern_add_color_stop_rgb(pattern.get(), TEXT_GRADIENT_STOP_0,
                                    TEXT_GRADIENT_R0, TEXT_GRADIENT_G0,
                                    TEXT_GRADIENT_B0);
-  cairo_pattern_add_color_stop_rgb(pattern.get(), TEXT_GRADIENT_STOP_1,
+  cairo_pattern_add_color_stop_rgb(pattern.get(), text_gradient_stop_1,
                                    TEXT_GRADIENT_R1, TEXT_GRADIENT_G1,
                                    TEXT_GRADIENT_B1);
   cairo_pattern_add_color_stop_rgb(pattern.get(), TEXT_GRADIENT_STOP_2,
@@ -1154,7 +1156,7 @@ static void DrawTextFieldBackground(GtkStyle* style,
                                     gint y,
                                     gint w,
                                     gint h) {
-  if (!gtk_entry_get_has_frame(GTK_ENTRY(widget)))
+  if (GTK_IS_ENTRY(widget) && !gtk_entry_get_has_frame(GTK_ENTRY(widget)))
     return;
 
   ScopedSurface cr(window, area);
@@ -1174,7 +1176,7 @@ static void DrawTextFieldBorder(GtkStyle* style,
                                 gint y,
                                 gint w,
                                 gint h) {
-  if (!gtk_entry_get_has_frame(GTK_ENTRY(widget)))
+  if (GTK_IS_ENTRY(widget) && !gtk_entry_get_has_frame(GTK_ENTRY(widget)))
     return;
 
   ScopedSurface cr(window, area);
@@ -1411,7 +1413,8 @@ void ThemeDrawFlatBox(GtkStyle* style,
                       gint y,
                       gint w,
                       gint h) {
-  if (GTK_IS_ENTRY(widget) && detail && !strcmp(detail, "entry_bg")) {
+  if ((GTK_IS_ENTRY(widget) && detail && !strcmp(detail, "entry_bg")) ||
+      (GTK_IS_TEXT_VIEW(widget) && detail && !strcmp(detail, "textview")))  {
     DrawTextFieldBackground(style, window, state_type, shadow_type, area,
                             widget, x, y, w, h);
   } else if (GTK_IS_WINDOW(widget) && detail && !strcmp(detail, "tooltip")) {
@@ -1486,7 +1489,8 @@ void ThemeDrawShadow(GtkStyle* style,
                      gint y,
                      gint w,
                      gint h) {
-  if (GTK_IS_ENTRY(widget) && detail && !strcmp(detail, "entry")) {
+  if ((GTK_IS_ENTRY(widget) && detail && !strcmp(detail, "entry")) ||
+      (GTK_IS_TEXT_VIEW(widget) && detail && !strcmp(detail, "textview"))) {
     DrawTextFieldBorder(style, window, state_type, shadow_type, area, widget, x,
                         y, w, h);
   } else if (GTK_IS_SCROLLED_WINDOW(widget) && detail &&