From aec24511f59ace8681d28cb5d11d04f9f57357b4 Mon Sep 17 00:00:00 2001
From: Dan Vanderkam <danvdk@gmail.com>
Date: Sat, 1 Oct 2016 16:25:44 -0400
Subject: [PATCH] Remove isAndroid checks (#784)

---
 src/dygraph-canvas.js | 22 +++++++++-------------
 src/dygraph-utils.js  | 11 -----------
 2 files changed, 9 insertions(+), 24 deletions(-)

diff --git a/src/dygraph-canvas.js b/src/dygraph-canvas.js
index bd37e67..7377239 100644
--- a/src/dygraph-canvas.js
+++ b/src/dygraph-canvas.js
@@ -68,19 +68,15 @@ var DygraphCanvasRenderer = function(dygraph, element, elementContext, layout) {
 
   // Set up a clipping area for the canvas (and the interaction canvas).
   // This ensures that we don't overdraw.
-  // on Android 3 and 4, setting a clipping area on a canvas prevents it from
-  // displaying anything.
-  if (!utils.isAndroid()) {
-    var ctx = this.dygraph_.canvas_ctx_;
-    ctx.beginPath();
-    ctx.rect(this.area.x, this.area.y, this.area.w, this.area.h);
-    ctx.clip();
+  var ctx = this.dygraph_.canvas_ctx_;
+  ctx.beginPath();
+  ctx.rect(this.area.x, this.area.y, this.area.w, this.area.h);
+  ctx.clip();
 
-    ctx = this.dygraph_.hidden_ctx_;
-    ctx.beginPath();
-    ctx.rect(this.area.x, this.area.y, this.area.w, this.area.h);
-    ctx.clip();
-  }
+  ctx = this.dygraph_.hidden_ctx_;
+  ctx.beginPath();
+  ctx.rect(this.area.x, this.area.y, this.area.w, this.area.h);
+  ctx.clip();
 };
 
 /**
@@ -544,7 +540,7 @@ DygraphCanvasRenderer._errorPlotter = function(e) {
  * Proxy for CanvasRenderingContext2D which drops moveTo/lineTo calls which are
  * superfluous. It accumulates all movements which haven't changed the x-value
  * and only applies the two with the most extreme y-values.
- * 
+ *
  * Calls to lineTo/moveTo must have non-decreasing x-values.
  */
 DygraphCanvasRenderer._fastCanvasProxy = function(context) {
diff --git a/src/dygraph-utils.js b/src/dygraph-utils.js
index 8e972a6..c319e49 100644
--- a/src/dygraph-utils.js
+++ b/src/dygraph-utils.js
@@ -686,17 +686,6 @@ export function getContextPixelRatio(context) {
 };
 
 /**
- * Checks whether the user is on an Android browser.
- * Android does not fully support the <canvas> tag, e.g. w/r/t/ clipping.
- * @return {boolean}
- * @private
- */
-export function isAndroid() {
-  return (/Android/).test(navigator.userAgent);
-};
-
-
-/**
  * TODO(danvk): use @template here when it's better supported for classes.
  * @param {!Array} array
  * @param {number} start
-- 
2.7.4