Allow calling HandleAllocator::reserve with MAX_UINT.

src/libANGLE/HandleAllocator.cpp

@@ -26,7 +26,7 @@ struct HandleAllocator::HandleRangeComparator
 
 HandleAllocator::HandleAllocator() : mBaseValue(1), mNextValue(1)
 {
-    mUnallocatedList.push_back(HandleRange(1, std::numeric_limits<GLuint>::max() - 1));
+    mUnallocatedList.push_back(HandleRange(1, std::numeric_limits<GLuint>::max()));
 }
 
 HandleAllocator::HandleAllocator(GLuint maximumHandleValue) : mBaseValue(1), mNextValue(1)

src/libANGLE/HandleAllocator_unittest.cpp

@@ -90,4 +90,17 @@ TEST(HandleAllocatorTest, Reallocation)
     EXPECT_EQ(finalResult, 1);
 }
 
+// The following test covers reserving a handle with max uint value.
+// See http://anglebug.com/1052
+TEST(HandleAllocatorTest, ReserveMaxUintHandle)
+{
+    gl::HandleAllocator allocator;
+
+    GLuint maxUintHandle = std::numeric_limits<GLuint>::max();
+    allocator.reserve(maxUintHandle);
+
+    GLuint normalHandle = allocator.allocate();
+    EXPECT_EQ(1u, normalHandle);
+}
+
 }