[android] Resize the android_webview if it's 0x0 initially.

android_webview/javatests/src/org/chromium/android_webview/test/AwLayoutSizerTest.java

Index: android_webview/javatests/src/org/chromium/android_webview/test/AwLayoutSizerTest.java
diff --git a/android_webview/javatests/src/org/chromium/android_webview/test/AwLayoutSizerTest.java b/android_webview/javatests/src/org/chromium/android_webview/test/AwLayoutSizerTest.java
index 687e93c799090c9c59bda93a5f1e65ad7282692c..5d562d85f57e35940f951ce74ba7bbd0456d2311 100644
--- a/android_webview/javatests/src/org/chromium/android_webview/test/AwLayoutSizerTest.java
+++ b/android_webview/javatests/src/org/chromium/android_webview/test/AwLayoutSizerTest.java
@@ -36,9 +36,15 @@ public class AwLayoutSizerTest extends InstrumentationTestCase {
     private static final int secondContentWidth = 103;
     private static final int secondContentHeight = 397;
 
+    private static final int smallerContentSize = 25;
+    private static final int atMostMeasureSize = 50;
+    private static final int tooLargeContentSize = 100;
+
+    private static final double initialPageScale = 1.0;
+
     public void testCanQueryContentSize() {
         LayoutSizerDelegate delegate = new LayoutSizerDelegate();
-        AwLayoutSizer layoutSizer = new AwLayoutSizer(delegate);
+        AwLayoutSizer layoutSizer = new AwLayoutSizer(delegate, initialPageScale);
         final int contentWidth = 101;
         final int contentHeight = 389;
 
@@ -53,7 +59,7 @@ public class AwLayoutSizerTest extends InstrumentationTestCase {
 
     public void testContentSizeChangeRequestsLayout() {
         LayoutSizerDelegate delegate = new LayoutSizerDelegate();
-        AwLayoutSizer layoutSizer = new AwLayoutSizer(delegate);
+        AwLayoutSizer layoutSizer = new AwLayoutSizer(delegate, initialPageScale);
 
         layoutSizer.onContentSizeChanged(firstContentWidth, firstContentHeight);
         final int requestLayoutCallCount = delegate.requestLayoutCallCount;
@@ -64,7 +70,7 @@ public class AwLayoutSizerTest extends InstrumentationTestCase {
 
     public void testContentSizeChangeDoesNotRequestLayoutIfMeasuredExcatly() {
         LayoutSizerDelegate delegate = new LayoutSizerDelegate();
-        AwLayoutSizer layoutSizer = new AwLayoutSizer(delegate);
+        AwLayoutSizer layoutSizer = new AwLayoutSizer(delegate, initialPageScale);
 
         layoutSizer.onContentSizeChanged(firstContentWidth, firstContentHeight);
         layoutSizer.onMeasure(MeasureSpec.makeMeasureSpec(50, MeasureSpec.EXACTLY),
@@ -75,13 +81,22 @@ public class AwLayoutSizerTest extends InstrumentationTestCase {
         assertEquals(requestLayoutCallCount, delegate.requestLayoutCallCount);
     }
 
-    public void testContentHeightGrowsTillAtMostSize() {
+    public void testDuplicateContentSizeChangeDoesNotRequestLayout() {
         LayoutSizerDelegate delegate = new LayoutSizerDelegate();
-        AwLayoutSizer layoutSizer = new AwLayoutSizer(delegate);
+        AwLayoutSizer layoutSizer = new AwLayoutSizer(delegate, initialPageScale);
+
+        layoutSizer.onContentSizeChanged(firstContentWidth, firstContentHeight);
+        layoutSizer.onMeasure(MeasureSpec.makeMeasureSpec(50, MeasureSpec.EXACTLY),
+                MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED));
+        final int requestLayoutCallCount = delegate.requestLayoutCallCount;
+        layoutSizer.onContentSizeChanged(firstContentWidth, firstContentHeight);
+
+        assertEquals(requestLayoutCallCount, delegate.requestLayoutCallCount);
+    }
 
-        final int smallerContentSize = 25;
-        final int atMostMeasureSize = 50;
-        final int tooLargeContentSize = 100;
+    public void testContentHeightGrowsTillAtMostSize() {
+        LayoutSizerDelegate delegate = new LayoutSizerDelegate();
+        AwLayoutSizer layoutSizer = new AwLayoutSizer(delegate, initialPageScale);
 
         layoutSizer.onContentSizeChanged(smallerContentSize, smallerContentSize);
         layoutSizer.onMeasure(MeasureSpec.makeMeasureSpec(atMostMeasureSize, MeasureSpec.AT_MOST),
@@ -95,4 +110,49 @@ public class AwLayoutSizerTest extends InstrumentationTestCase {
         assertEquals(atMostMeasureSize, delegate.measuredWidth & View.MEASURED_SIZE_MASK);
         assertEquals(atMostMeasureSize, delegate.measuredHeight & View.MEASURED_SIZE_MASK);
     }
+
+    public void testScaleChangeRequestsLayout() {
+        LayoutSizerDelegate delegate = new LayoutSizerDelegate();
+        AwLayoutSizer layoutSizer = new AwLayoutSizer(delegate, initialPageScale);
+
+        layoutSizer.onContentSizeChanged(firstContentWidth, firstContentHeight);
+        layoutSizer.onMeasure(MeasureSpec.makeMeasureSpec(atMostMeasureSize, MeasureSpec.EXACTLY),
+                MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED));
+        final int requestLayoutCallCount = delegate.requestLayoutCallCount;
+        layoutSizer.onPageScaleChanged(initialPageScale + 0.5);
+
+        assertEquals(requestLayoutCallCount + 1, delegate.requestLayoutCallCount);
+    }
+
+    public void testDuplicateScaleChangeDoesNotRequestLayout() {
+        LayoutSizerDelegate delegate = new LayoutSizerDelegate();
+        AwLayoutSizer layoutSizer = new AwLayoutSizer(delegate, initialPageScale);
+
+        layoutSizer.onContentSizeChanged(firstContentWidth, firstContentHeight);
+        layoutSizer.onMeasure(MeasureSpec.makeMeasureSpec(50, MeasureSpec.EXACTLY),
+                MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED));
+        final int requestLayoutCallCount = delegate.requestLayoutCallCount;
+        layoutSizer.onPageScaleChanged(initialPageScale);
+
+        assertEquals(requestLayoutCallCount, delegate.requestLayoutCallCount);
+    }
+
+    public void testScaleChangeGrowsTillAtMostSize() {
+        LayoutSizerDelegate delegate = new LayoutSizerDelegate();
+        AwLayoutSizer layoutSizer = new AwLayoutSizer(delegate, initialPageScale);
+
+        final double tooLargePageScale = 3.00;
+
+        layoutSizer.onContentSizeChanged(smallerContentSize, smallerContentSize);
+        layoutSizer.onMeasure(MeasureSpec.makeMeasureSpec(atMostMeasureSize, MeasureSpec.AT_MOST),
+                MeasureSpec.makeMeasureSpec(atMostMeasureSize, MeasureSpec.AT_MOST));
+        assertEquals(atMostMeasureSize, delegate.measuredWidth);
+        assertEquals(smallerContentSize, delegate.measuredHeight);
+
+        layoutSizer.onPageScaleChanged(tooLargePageScale);
+        layoutSizer.onMeasure(MeasureSpec.makeMeasureSpec(atMostMeasureSize, MeasureSpec.AT_MOST),
+                MeasureSpec.makeMeasureSpec(atMostMeasureSize, MeasureSpec.AT_MOST));
+        assertEquals(atMostMeasureSize, delegate.measuredWidth & View.MEASURED_SIZE_MASK);
+        assertEquals(atMostMeasureSize, delegate.measuredHeight & View.MEASURED_SIZE_MASK);
+    }
 }