[Android WebView] Enable the Blink quirk for returning screen sizes in physical pixels

This enables the browser to return screen.width / availWidth (and height),
@media device-width (and height), window.outerWidth (and height),
but not window.innerWidth (and height) in physical rather than CSS
pixels.

BUG=305236

Review URL: https://codereview.chromium.org/26460004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@229023 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 55 insertions, 0 deletions

diff --git a/android_webview/javatests/src/org/chromium/android_webview/test/AwViewportTest.java b/android_webview/javatests/src/org/chromium/android_webview/test/AwViewportTest.java
index 0a76166..efe253a 100644
--- a/android_webview/javatests/src/org/chromium/android_webview/test/AwViewportTest.java
+++ b/android_webview/javatests/src/org/chromium/android_webview/test/AwViewportTest.java
@@ -107,4 +107,59 @@ public class AwViewportTest extends AwTestBase {
         assertEquals(displayWidth, (float)actualWidth, 10f);
         assertEquals(1.0f, getScaleOnUiThread(awContents));
     }
+
+    @MediumTest
+    @Feature({"AndroidWebView"})
+    public void testScreenSizeInPhysicalPixelsQuirk() throws Throwable {
+        final TestAwContentsClient contentClient = new TestAwContentsClient();
+        final AwTestContainerView testContainerView =
+                createAwTestContainerViewOnMainSync(contentClient);
+        final AwContents awContents = testContainerView.getAwContents();
+        AwSettings settings = getAwSettingsOnUiThread(awContents);
+        CallbackHelper onPageFinishedHelper = contentClient.getOnPageFinishedHelper();
+
+        settings.setJavaScriptEnabled(true);
+
+        loadUrlSync(awContents, onPageFinishedHelper, "about:blank");
+
+        DeviceDisplayInfo deviceInfo =
+                DeviceDisplayInfo.create(getInstrumentation().getTargetContext());
+        float dipScale = (float)deviceInfo.getDIPScale();
+        float physicalDisplayWidth = deviceInfo.getDisplayWidth();
+        float cssDisplayWidth = physicalDisplayWidth / dipScale;
+        float physicalDisplayHeight = deviceInfo.getDisplayHeight();
+        float cssDisplayHeight = physicalDisplayHeight / dipScale;
+
+        float screenWidth = Integer.parseInt(
+                executeJavaScriptAndWaitForResult(awContents, contentClient, "screen.width"));
+        assertEquals(physicalDisplayWidth, screenWidth, 10f);
+        float screenAvailWidth = Integer.parseInt(
+                executeJavaScriptAndWaitForResult(awContents, contentClient, "screen.availWidth"));
+        assertEquals(physicalDisplayWidth, screenAvailWidth, 10f);
+        float outerWidth = Integer.parseInt(
+                executeJavaScriptAndWaitForResult(awContents, contentClient, "outerWidth"));
+        float innerWidth = Integer.parseInt(
+                executeJavaScriptAndWaitForResult(awContents, contentClient, "innerWidth"));
+        assertEquals(innerWidth * dipScale, outerWidth, 10f);
+        String deviceWidthEqualsScreenWidth = executeJavaScriptAndWaitForResult(awContents,
+                contentClient,
+                "matchMedia(\"screen and (device-width:" + (int)screenWidth + "px)\").matches");
+        assertEquals("true", deviceWidthEqualsScreenWidth);
+
+        float screenHeight = Integer.parseInt(
+                executeJavaScriptAndWaitForResult(awContents, contentClient, "screen.height"));
+        assertEquals(physicalDisplayHeight, screenHeight, 10f);
+        float screenAvailHeight = Integer.parseInt(
+                executeJavaScriptAndWaitForResult(awContents, contentClient, "screen.availHeight"));
+        assertEquals(physicalDisplayHeight, screenAvailHeight, 10f);
+        float outerHeight = Integer.parseInt(
+                executeJavaScriptAndWaitForResult(awContents, contentClient, "outerHeight"));
+        float innerHeight = Integer.parseInt(
+                executeJavaScriptAndWaitForResult(awContents, contentClient, "innerHeight"));
+        assertEquals(innerHeight * dipScale, outerHeight, 10f);
+        String deviceHeightEqualsScreenHeight = executeJavaScriptAndWaitForResult(awContents,
+                contentClient,
+                "matchMedia(\"screen and (device-height:" + (int)screenHeight + "px)\").matches");
+        assertEquals("true", deviceHeightEqualsScreenHeight);
+    }
 }